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    114 vulnerabilities found for Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION by Red Hat

    CVE-2026-18922 (GCVE-0-2026-18922)

    Vulnerability from nvd – Published: 2026-09-07 14:14 – Updated: 2026-09-08 13:04
    VLAI
    Title
    389-ds-base: 389-ds-base: sasl plain authentication allows privilege escalation to directory manager via stale identity in cyrus sasl auxiliary property
    Summary
    A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-08 13:04 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:64771 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64776 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64778 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64779 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64780 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64781 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64783 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64784 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64785 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64789 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64790 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64793 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64804 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64811 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-18922 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2511388 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Directory Server 11.7 E4S for RHEL 8 Unaffected: 8080020260903102346.f969626e , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:11.7::el8
    Create a notification for this product.
    Red Hat Red Hat Directory Server 11.9 for RHEL 8 Unaffected: 8100020260904171440.37ed7c03 , < * (rpm)
        cpe:/a:redhat:directory_server:11.9::el8
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12.2 E4S for RHEL 9 Unaffected: 9020020260903155914.1674d574 , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:12.2::el9
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12.4 E4S for RHEL 9 Unaffected: 9040020260903102623.1674d574 , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:12.4::el9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.2.0-10.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:3.0.6-21.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.2.11.15-97.el6_10.1 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.3.11.1-15.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020260904155442.25e700aa , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 8040020260901171549.96015a92 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 8040020260901171549.96015a92 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 8060020260901145727.824efc52 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 8060020260901145727.824efc52 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 8080020260831180218.6dbb3803 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 8080020260831180218.6dbb3803 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.8.0-10.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:2.2.4-22.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:2.4.5-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:2.6.1-24.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12     cpe:/a:redhat:directory_server:12
    Create a notification for this product.
    Red Hat Red Hat Directory Server 13     cpe:/a:redhat:directory_server:13
    Create a notification for this product.
    Date Public
    2026-09-07 12:33
    Show details on NVD website

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        "dateReserved": "2026-08-05T08:26:17.044Z",
        "dateUpdated": "2026-09-08T13:04:34.933Z",
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    CVE-2026-15816 (GCVE-0-2026-15816)

    Vulnerability from nvd – Published: 2026-08-07 10:33 – Updated: 2026-10-01 23:16
    VLAI
    Title
    Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
    Summary
    A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-07 14:32 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:54571 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:54575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:54576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57580 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57772 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57775 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57785 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:60440 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:60445 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:61252 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62269 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62409 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62549 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:63041 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:63044 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:65839 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:65851 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:66357 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:67857 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:69118 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:69119 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:70586 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:70615 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:74499 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-15816 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2459963
    https://bugzilla.redhat.com/show_bug.cgi?id=2500889 issue-trackingx_refsource_REDHAT
    https://github.com/dracutdevs/dracut/blob/master/…
    https://github.com/dracutdevs/dracut/blob/master/…
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:107-9.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:105-4.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:004-413.el6_10 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:033-577.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-246.git20260728.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8::baseos
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-120.git20260728.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/o:redhat:enterprise_linux:9::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
        cpe:/o:redhat:rhel_e4s:9.2::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
        cpe:/o:redhat:rhel_e4s:9.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/o:redhat:rhel_eus:9.6::baseos
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202609080414-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202609011250-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202609140326-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202609011112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202609191027-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609031320-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609171815-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202609021231-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 4.20.9.6.202608260604-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.20::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 4.21.9.6.202609021100-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.21::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 4.22.9.8.202608251819-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.22::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 4.22.9.8.202609081748-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.22::el9
    Create a notification for this product.
    Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
    Create a notification for this product.
    Date Public
    2026-08-05 23:59
    Show details on NVD website

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    CVE-2026-6893 (GCVE-0-2026-6893)

    Vulnerability from nvd – Published: 2026-06-10 19:49 – Updated: 2026-10-01 23:16
    VLAI
    Title
    Dracut: dracut: root code execution via dhcp options command injection
    Summary
    A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-12 12:29 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26532 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26533 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26534 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26713 vendor-advisoryx_refsource_REDHAT
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    https://access.redhat.com/errata/RHSA-2026:62549 vendor-advisoryx_refsource_REDHAT
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    https://access.redhat.com/errata/RHSA-2026:74499 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-6893 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2459963 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:107-7.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:105-4.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:004-413.el6_10 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:033-577.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-244.git20260529.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-115.git20260527.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/o:redhat:enterprise_linux:9::baseos
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
        cpe:/o:redhat:rhel_e4s:9.2::baseos
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
        cpe:/o:redhat:rhel_e4s:9.4::baseos
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/o:redhat:rhel_eus:9.6::baseos
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    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202609080414-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
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    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202609011250-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
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    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202609140326-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
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    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202609011112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
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    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202609191027-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
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    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609031320-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
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    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609171815-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
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    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202609021231-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
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    Red Hat Red Hat Hardened Images Unaffected: 109-6.hum1 , < * (rpm)
        cpe:/a:redhat:hummingbird:1
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    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-244.git20260529.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-115.git20260527.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Date Public
    2026-06-10 19:39
    Show details on NVD website

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              "time": "2026-04-21T02:37:23.000Z",
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        "dateReserved": "2026-04-23T04:58:44.915Z",
        "dateUpdated": "2026-10-01T23:16:13.496Z",
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    CVE-2026-45447 (GCVE-0-2026-45447)

    Vulnerability from nvd – Published: 2026-06-09 16:03 – Updated: 2026-09-18 12:04
    VLAI
    Title
    Heap Use-After-Free in the PKCS7_verify() Function
    Summary
    Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-10 03:59 UTC
    CWE
    References
    URL Tags
    https://openssl-library.org/news/secadv/20260609.txt vendor-advisory
    https://github.com/openssl/openssl/commit/3aad5eb… patch
    https://github.com/openssl/openssl/commit/c505d75… patch
    https://github.com/openssl/openssl/commit/7d4a980… patch
    https://github.com/openssl/openssl/commit/a541ae8… patch
    https://github.com/openssl/openssl/commit/9dfd688… patch
    https://access.redhat.com/security/cve/CVE-2026-45447 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2481898 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    https://access.redhat.com/errata/RHSA-2026:66524 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:58563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:59831 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25237 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36215 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36217 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39012 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39009 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:35869 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:44438 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25239 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26275 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39981 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47737 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29197 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34102 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:58981 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26319 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47735 vendor-advisoryx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    OpenSSL OpenSSL Affected: 4.0.0 , < 4.0.1 (semver)
    Affected: 3.6.0 , < 3.6.3 (semver)
    Affected: 3.5.0 , < 3.5.7 (semver)
    Affected: 3.4.0 , < 3.4.6 (semver)
    Affected: 3.0.0 , < 3.0.21 (semver)
    Affected: 1.1.1 , < 1.1.1zh (custom)
    Affected: 1.0.2 , < 1.0.2zq (custom)
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    Red Hat Red Hat Enterprise Linux 10 Unaffected: 1:3.5.5-4.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.0.1e-61.el6_10.1 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 1:1.0.2k-26.el7_9.2 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:1.0.2o-4.el8_10.3 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 1:1.0.2o-4.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 1:1.0.2o-4.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:3.5.5-4.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:1.1.1k-5.el9_8.4 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 1:1.1.1k-4.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 1:1.1.1k-5.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 1:1.1.1k-5.el9_6.3 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202608241157-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.12::el8
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    Red Hat Cost Management 4 Unaffected: 1783539156 , < * (rpm)
        cpe:/a:redhat:cost_management:4::el9
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    Red Hat multicluster engine for Kubernetes 2.8 Unaffected: 1785078604 , < * (rpm)
        cpe:/a:redhat:multicluster_engine:2.8::el9
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    Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 Unaffected: 1785078581 , < * (rpm)
        cpe:/a:redhat:acm:2.13::el9
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    Red Hat Red Hat Discovery 2 Unaffected: 1782159791 , < * (rpm)
        cpe:/a:redhat:discovery:2::el9
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    Red Hat Red Hat Discovery 2 Unaffected: 1782166952 , < * (rpm)
        cpe:/a:redhat:discovery:2::el9
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    Red Hat Red Hat Insights proxy 1.5 Unaffected: 1782890503 , < * (rpm)
        cpe:/a:redhat:insights_proxy:1.5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525684 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525671 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525693 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525739 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787241211 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787135742 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787241260 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Multicluster Engine for Kubernetes     cpe:/a:redhat:multicluster_engine
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    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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    Red Hat Red Hat JBoss Core Services     cpe:/a:redhat:jboss_core_services:1
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    Red Hat Red Hat JBoss Web Server 6     cpe:/a:redhat:jboss_enterprise_web_server:6
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    Red Hat Red Hat JBoss Web Server 7     cpe:/a:redhat:jboss_enterprise_web_server:7
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    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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    Date Public
    2026-06-09 14:00
    Show details on NVD website

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              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:26275"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:39981"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:47737"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:29197"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:34102"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:58981"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:26319"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:47735"
              }
            ],
            "solutions": [
              {
                "lang": "en",
                "value": "RHSA-2026:66524: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION), Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:58563: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:59831: Red Hat OpenShift Container Platform 4.12"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:25237: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:36215: Red Hat Enterprise Linux AppStream (v. 8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:36217: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39012: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39009: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:35869: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:44438: Red Hat Enterprise Linux AppStream (v. 9)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:25239: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:26275: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39981: Cost Management 4"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:47737: Red Hat Advanced Cluster Management for Kubernetes 2.13"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:29197: Red Hat Discovery 2"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:34102: Red Hat Insights proxy 1.5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:58981: Red Hat Update Infrastructure 5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:26319: Red Hat Update Infrastructure 5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:47735: multicluster engine for Kubernetes 2.8"
              }
            ],
            "timeline": [
              {
                "lang": "en",
                "time": "2026-05-27T14:17:46.000Z",
                "value": "Reported to Red Hat."
              },
              {
                "lang": "en",
                "time": "2026-06-09T00:00:00.000Z",
                "value": "Made public."
              }
            ],
            "title": "openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()",
            "workarounds": [
              {
                "lang": "en",
                "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
              }
            ],
            "x_adpType": "supplier",
            "x_generator": {
              "engine": "sadp-cli 1.0.0"
            }
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "OpenSSL",
              "vendor": "OpenSSL",
              "versions": [
                {
                  "lessThan": "4.0.1",
                  "status": "affected",
                  "version": "4.0.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.6.3",
                  "status": "affected",
                  "version": "3.6.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.5.7",
                  "status": "affected",
                  "version": "3.5.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.4.6",
                  "status": "affected",
                  "version": "3.4.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.0.21",
                  "status": "affected",
                  "version": "3.0.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "1.1.1zh",
                  "status": "affected",
                  "version": "1.1.1",
                  "versionType": "custom"
                },
                {
                  "lessThan": "1.0.2zq",
                  "status": "affected",
                  "version": "1.0.2",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Thai Duong (Calif.io in collaboration with Claude and Anthropic Research)"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Igor Ustinov"
            }
          ],
          "datePublic": "2026-06-09T14:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\u003cbr\u003etrigger a use-after-free during PKCS#7 signature verification.\u003cbr\u003e\u003cbr\u003eImpact summary: A use-after-free may result in process crashes, heap\u003cbr\u003ecorruption, or potentially remote code execution.\u003cbr\u003e\u003cbr\u003eWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\u003cbr\u003edigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\u003cbr\u003eincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\u003cbr\u003euse of the BIO by the calling application results in a use-after-free\u003cbr\u003econdition.\u003cbr\u003e\u003cbr\u003eIn the common case this occurs when the application later calls\u003cbr\u003eBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\u003cbr\u003eon allocator behavior and application-specific BIO usage patterns, this\u003cbr\u003emay result in a crash or other memory corruption. In some application\u003cbr\u003econtexts this may potentially be exploitable for remote code execution.\u003cbr\u003e\u003cbr\u003eApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\u003cbr\u003ePKCS#7 APIs may be affected. Applications using the CMS APIs for this\u003cbr\u003eprocessing are not affected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\u003cbr\u003eissue, as the affected code is outside the OpenSSL FIPS module boundary."
                }
              ],
              "value": "Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling application results in a use-after-free\ncondition.\n\nIn the common case this occurs when the application later calls\nBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\non allocator behavior and application-specific BIO usage patterns, this\nmay result in a crash or other memory corruption. In some application\ncontexts this may potentially be exploitable for remote code execution.\n\nApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\nPKCS#7 APIs may be affected. Applications using the CMS APIs for this\nprocessing are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."
            }
          ],
          "metrics": [
            {
              "format": "other",
              "other": {
                "content": {
                  "text": "High"
                },
                "type": "https://openssl-library.org/policies/general/security-policy/"
              }
            }
          ],
          "problemTypes": [
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                {
                  "cweId": "CWE-416",
                  "description": "CWE-416 Use After Free",
                  "lang": "en",
                  "type": "CWE"
                }
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            }
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          "providerMetadata": {
            "dateUpdated": "2026-06-10T07:48:15.381Z",
            "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
            "shortName": "openssl"
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          "references": [
            {
              "name": "OpenSSL Advisory",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://openssl-library.org/news/secadv/20260609.txt"
            },
            {
              "name": "4.0.1 git commit",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/openssl/openssl/commit/3aad5eb7af4de4ee0633c30a8541a54d9bbde63c"
            },
            {
              "name": "3.6.3 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/c505d7559da5d5f9f2c3913c6883a5562ce7273e"
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              "name": "3.5.7 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/7d4a980c62258c5910cc883936e0c8dbab4d75a8"
            },
            {
              "name": "3.4.6 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/a541ae8bfe849a30cc885e8780715c0f488e496c"
            },
            {
              "name": "3.0.21 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/9dfd688ad2290fc5075cacbc9bf0c9a93eefed54"
            }
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          "source": {
            "discovery": "UNKNOWN"
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          "title": "Heap Use-After-Free in the PKCS7_verify() Function",
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      },
      "cveMetadata": {
        "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "assignerShortName": "openssl",
        "cveId": "CVE-2026-45447",
        "datePublished": "2026-06-09T16:03:32.914Z",
        "dateReserved": "2026-05-12T14:34:06.277Z",
        "dateUpdated": "2026-09-18T12:04:50.529Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50263 (GCVE-0-2026-50263)

    Vulnerability from nvd – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:56
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-08 16:01 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50263 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485388 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

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              "tags": [
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                "x_refsource_REDHAT"
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              "name": "RHSA-2026:26709",
              "tags": [
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              "tags": [
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              "name": "RHSA-2026:29844",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:29844"
            },
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              "name": "RHSA-2026:36083",
              "tags": [
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              "name": "RHSA-2026:36085",
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              "name": "RHSA-2026:36087",
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              "name": "RHSA-2026:36791",
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                "vendor-advisory",
                "x_refsource_REDHAT"
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            },
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              "name": "RHSA-2026:36792",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36792"
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            {
              "name": "RHSA-2026:36798",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
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              "tags": [
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              "url": "https://access.redhat.com/errata/RHSA-2026:38502"
            },
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              "name": "RHSA-2026:38810",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
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              "name": "RHSA-2026:46377",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
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              "url": "https://access.redhat.com/errata/RHSA-2026:46377"
            },
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              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
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              "name": "RHSA-2026:46385",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
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              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
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              "name": "RHSA-2026:46460",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
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              "name": "RHSA-2026:46473",
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    }

    CVE-2026-50262 (GCVE-0-2026-50262)

    Vulnerability from nvd – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:55
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes
    Summary
    An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 13:37 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50262 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485387 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

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    CVE-2026-50261 (GCVE-0-2026-50261)

    Vulnerability from nvd – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-05 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50261 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485386 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50261",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-05T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-06T03:56:14.286Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
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                    "versionType": "rpm"
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
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                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.15.0-10.el8_10",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
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                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_tus:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-19.el8_8",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_tus:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-13.el8_8.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_tus:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
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              "name": "RHSA-2026:26590",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26590"
            },
            {
              "name": "RHSA-2026:26610",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26610"
            },
            {
              "name": "RHSA-2026:26709",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26709"
            },
            {
              "name": "RHSA-2026:28923",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:28923"
            },
            {
              "name": "RHSA-2026:29844",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:29844"
            },
            {
              "name": "RHSA-2026:36083",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36083"
            },
            {
              "name": "RHSA-2026:36085",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36085"
            },
            {
              "name": "RHSA-2026:36086",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36086"
            },
            {
              "name": "RHSA-2026:36087",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36087"
            },
            {
              "name": "RHSA-2026:36632",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36632"
            },
            {
              "name": "RHSA-2026:36633",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36633"
            },
            {
              "name": "RHSA-2026:36634",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36634"
            },
            {
              "name": "RHSA-2026:36768",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36768"
            },
            {
              "name": "RHSA-2026:36791",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36791"
            },
            {
              "name": "RHSA-2026:36792",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36792"
            },
            {
              "name": "RHSA-2026:36798",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36798"
            },
            {
              "name": "RHSA-2026:38502",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38502"
            },
            {
              "name": "RHSA-2026:38810",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
            {
              "name": "RHSA-2026:46377",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46377"
            },
            {
              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
            {
              "name": "RHSA-2026:46385",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
            {
              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
            {
              "name": "RHSA-2026:46460",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:49519"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-50261"
            },
            {
              "name": "RHBZ#2485386",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485386"
            },
            {
              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/bdd7bf57af208b1ddf57d4683d67104443b44812"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
            {
              "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-15T03:14:46.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-416: Use After Free"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50261",
        "datePublished": "2026-06-05T10:36:33.418Z",
        "dateReserved": "2026-06-04T14:55:24.012Z",
        "dateUpdated": "2026-09-28T11:46:21.412Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50260 (GCVE-0-2026-50260)

    Vulnerability from nvd – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50260 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485385 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

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              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:49519"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-50260"
            },
            {
              "name": "RHBZ#2485385",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485385"
            },
            {
              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/f5abfb61994471023d8c6470428c8e30c411cc0b"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
            {
              "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-15T03:14:46.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-416: Use After Free"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50260",
        "datePublished": "2026-06-05T10:36:30.319Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:46:16.476Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50259 (GCVE-0-2026-50259)

    Vulnerability from nvd – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50259 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485384 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50259",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
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    CVE-2026-50258 (GCVE-0-2026-50258)

    Vulnerability from nvd – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
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    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50258 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485383 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50258",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-09T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-10T03:58:50.113Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el10_2.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.5-6.el10_0.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.15.0-10.el8_10",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
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    CVE-2026-50257 (GCVE-0-2026-50257)

    Vulnerability from nvd – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50257 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485382 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50257",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-09T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-10T03:58:53.470Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el10_2.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.5-6.el10_0.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.15.0-10.el8_10",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
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              "value": "A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root."
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          "metrics": [
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          ],
          "problemTypes": [
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            },
            {
              "name": "RHSA-2026:26566",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26566"
            },
            {
              "name": "RHSA-2026:26590",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26590"
            },
            {
              "name": "RHSA-2026:26610",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26610"
            },
            {
              "name": "RHSA-2026:26709",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26709"
            },
            {
              "name": "RHSA-2026:28923",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:28923"
            },
            {
              "name": "RHSA-2026:29844",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:29844"
            },
            {
              "name": "RHSA-2026:36083",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36083"
            },
            {
              "name": "RHSA-2026:36085",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36085"
            },
            {
              "name": "RHSA-2026:36086",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36086"
            },
            {
              "name": "RHSA-2026:36087",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36087"
            },
            {
              "name": "RHSA-2026:36632",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36632"
            },
            {
              "name": "RHSA-2026:36633",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36633"
            },
            {
              "name": "RHSA-2026:36634",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
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            },
            {
              "name": "RHSA-2026:36768",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36768"
            },
            {
              "name": "RHSA-2026:36791",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36791"
            },
            {
              "name": "RHSA-2026:36792",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36792"
            },
            {
              "name": "RHSA-2026:36798",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36798"
            },
            {
              "name": "RHSA-2026:38502",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38502"
            },
            {
              "name": "RHSA-2026:38810",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
            {
              "name": "RHSA-2026:46377",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46377"
            },
            {
              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
            {
              "name": "RHSA-2026:46385",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
            {
              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
            {
              "name": "RHSA-2026:46460",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
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            },
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            },
            {
              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/f5abfb61994471023d8c6470428c8e30c411cc0b"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
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              "time": "2026-05-15T03:14:46.000Z",
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            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
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          ],
          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
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      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50257",
        "datePublished": "2026-06-05T10:31:22.052Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:46:04.104Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50256 (GCVE-0-2026-50256)

    Vulnerability from nvd – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:45
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-10 03:58 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50256 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485380 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
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                    "id": "CVE-2026-50256",
                    "options": [
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                      },
                      {
                        "Automatable": "no"
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                      {
                        "Technical Impact": "total"
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                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-10T03:58:53.147448Z",
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            "title": "CISA ADP Vulnrichment"
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              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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              },
              {
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                "cpes": [
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                "defaultStatus": "affected",
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              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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                "defaultStatus": "affected",
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              {
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                    "status": "unaffected",
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              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-13.el8_8.1",
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                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-15.el8_8.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:9"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 9",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el9_8.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 9",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-34.el9_8.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:9"
                ],
                "defaultStatus": "affected",
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              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
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              "time": "2026-05-15T03:14:46.000Z",
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          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch",
          "workarounds": [
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              "lang": "en",
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        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50256",
        "datePublished": "2026-06-05T10:31:22.122Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:45:55.534Z",
        "state": "PUBLISHED"
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    }

    CVE-2026-46243 (GCVE-0-2026-46243)

    Vulnerability from nvd – Published: 2026-06-01 16:22 – Updated: 2026-09-01 12:04
    VLAI
    Title
    smb: client: reject userspace cifs.spnego descriptions
    Summary
    In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as kernel-originating inputs. However, userspace can also create keys of this type through request_key(2) or add_key(2), allowing those fields to be supplied without CIFS origin. Only accept cifs.spnego descriptions while CIFS is using its private spnego_cred to request the key.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-01 00:00 UTC
    CWE
    • CWE-20 - Improper Input Validation
    • CWE-825 - Expired Pointer Dereference
    References
    URL Tags
    https://git.kernel.org/stable/c/7713bd320ed4fc3d0…
    https://git.kernel.org/stable/c/9544559e59438a4b6…
    https://git.kernel.org/stable/c/cf20038657d6d4974…
    https://git.kernel.org/stable/c/2035acfb17221729b…
    https://git.kernel.org/stable/c/a3bbda6502a9398b8…
    https://git.kernel.org/stable/c/91f89c1d83e804176…
    https://git.kernel.org/stable/c/0aece6685fc80a8de…
    https://git.kernel.org/stable/c/3da1fdf4efbc49004…
    https://github.com/manizada/CIFSwitch exploit
    http://www.openwall.com/lists/oss-security/2026/06/01/6
    https://access.redhat.com/security/cve/CVE-2026-46243 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2481486 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    https://access.redhat.com/errata/RHSA-2026:23395 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33486 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27719 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27729 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:41236 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34048 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:40021 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28887 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28962 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36620 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47727 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34815 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34757 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34788 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34764 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25908 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23329 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26515 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27735 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27708 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24381 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33225 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23258 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33220 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26535 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26570 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33219 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33221 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33222 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33223 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33224 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23259 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26462 vendor-advisoryx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Linux Linux Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 7713bd320ed4fc3d08a227cd8e41242219a16981 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 9544559e59438a4b609b2fdfa0763d8360572824 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < cf20038657d6d4974349556a34e08fe0490bebbc (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 2035acfb17221729b1b8ac335e941868a04ca079 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < a3bbda6502a9398b816fa2e71c9a3f955f58013d (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 91f89c1d83e80417629791fcef6af8140d7d01c8 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 0aece6685fc80a8de492688ca2315fb86ec379c7 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 3da1fdf4efbc490041eb4f836bf596201203f8f2 (git)
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    Linux Linux Affected: 2.6.24
    Unaffected: 0 , < 2.6.24 (semver)
    Unaffected: 5.10.258 , ≤ 5.10.* (semver)
    Unaffected: 5.15.209 , ≤ 5.15.* (semver)
    Unaffected: 6.1.175 , ≤ 6.1.* (semver)
    Unaffected: 6.6.142 , ≤ 6.6.* (semver)
    Unaffected: 6.12.92 , ≤ 6.12.* (semver)
    Unaffected: 6.18.34 , ≤ 6.18.* (semver)
    Unaffected: 7.0.11 , ≤ 7.0.* (semver)
    Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    Red Hat NVIDIA for RHEL 10 Unaffected: 0:6.12.0-212.9.el10nv , < * (rpm)
    Unaffected: 0:6.12.0-231.12.el10nv , < * (rpm)
        cpe:/a:redhat:enterprise_linux_nvidia:10::el10
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    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:6.12.0-211.20.1.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:6.12.0-55.79.1.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:2.6.32-754.61.1.el6 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.155.1.rt56.1307.el7 , < * (rpm)
        cpe:/a:redhat:rhel_extras_rt_els:7
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.153.1.el7 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.129.1.rt7.470.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::nfv
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.129.1.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-372.196.1.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:4.18.0-372.196.1.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-687.13.1.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.176.1.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.176.1.rt14.461.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::nfv
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:5.14.0-427.132.1.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:5.14.0-570.123.1.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support     cpe:/o:redhat:rhel_eus:9.6
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    Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202606251120-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.12::el8
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    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202607141229-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
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    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202606231112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
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    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202606200237-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
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    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202607021016-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
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    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202607240132-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
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    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202606250458-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
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    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202606302000-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
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    Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 4.20.9.6.202607010620-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.20::el9
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    Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 4.21.9.6.202607011303-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.21::el9
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    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
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                    "options": [
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                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-01T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-20",
                    "description": "CWE-20 Improper Input Validation",
                    "lang": "en",
                    "type": "CWE"
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            "providerMetadata": {
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            "references": [
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                "url": "https://github.com/manizada/CIFSwitch"
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            "title": "CISA ADP Vulnrichment"
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            "title": "CVE Program Container"
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                "cpes": [
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                "packageName": "kernel",
                "product": "NVIDIA for RHEL 10",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
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                    "versionType": "rpm"
                  },
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                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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    CVE-2026-34002 (GCVE-0-2026-34002)

    Vulnerability from nvd – Published: 2026-05-05 14:41 – Updated: 2026-06-08 03:30
    VLAI
    Title
    Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling
    Summary
    A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-06 14:27 UTC
    CWE
    • CWE-805 - Buffer Access with Incorrect Length Value
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:20547 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20555 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20557 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20558 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20560 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20561 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21699 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21712 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21715 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21716 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21718 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21741 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21742 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22424 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23254 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23255 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23496 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24341 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-34002 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2451112 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.16 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-34.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.4 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:21.1.3-5.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.20.11-13.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.11.0-22.el9_0.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-20.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.14 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.20.11-28.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
        cpe:/a:redhat:rhel_eus:9.4::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:22.1.9-8.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.13.1-8.el9_4.9 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-33.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-10.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Date Public
    2026-05-05 14:01
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-34002",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-06T14:27:00.488000Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-06T14:27:54.934Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux_eus:10.0"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:24.1.5-6.el10_0",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:6"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.1.0-25.el6_10.16",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.4-34.el7_9",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.8.0-36.el7_9.4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                "cpe:/a:redhat:rhel_tus:8.8::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-13.el8_8",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                "cpe:/a:redhat:rhel_tus:8.8::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-18.el8_8",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                "cpe:/a:redhat:rhel_tus:8.8::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
              "vendor": "Red Hat",
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    CVE-2026-34000 (GCVE-0-2026-34000)

    Vulnerability from nvd – Published: 2026-05-05 14:41 – Updated: 2026-06-08 03:30
    VLAI
    Title
    Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.
    Summary
    A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-05 18:51 UTC
    CWE
    References
    URL Tags
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    https://access.redhat.com/errata/RHSA-2026:20562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21699 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21712 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21715 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21716 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21718 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21741 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21742 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22424 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23254 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23255 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23496 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24341 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-34000 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2451107 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.16 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-34.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.4 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.1 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:21.1.3-5.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.20.11-13.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.11.0-22.el9_0.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-20.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.14 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.20.11-28.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
        cpe:/a:redhat:rhel_eus:9.4::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:22.1.9-8.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.13.1-8.el9_4.9 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-33.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-10.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Date Public
    2026-05-05 14:01
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-34000",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-05T18:51:27.642857Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-05T18:52:32.853Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux_eus:10.0"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:24.1.5-6.el10_0",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:6"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.1.0-25.el6_10.16",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.4-34.el7_9",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.8.0-36.el7_9.4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
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        "assignerShortName": "redhat",
        "cveId": "CVE-2026-34000",
        "datePublished": "2026-05-05T14:41:05.468Z",
        "dateReserved": "2026-03-25T04:53:13.614Z",
        "dateUpdated": "2026-06-08T03:30:12.287Z",
        "state": "PUBLISHED"
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    CVE-2026-18922 (GCVE-0-2026-18922)

    Vulnerability from cvelistv5 – Published: 2026-09-07 14:14 – Updated: 2026-09-08 13:04
    VLAI
    Title
    389-ds-base: 389-ds-base: sasl plain authentication allows privilege escalation to directory manager via stale identity in cyrus sasl auxiliary property
    Summary
    A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-08 13:04 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:64771 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64776 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64778 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64779 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64780 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64781 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64783 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64784 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64785 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64789 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64790 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64793 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64804 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:64811 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-18922 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2511388 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Directory Server 11.7 E4S for RHEL 8 Unaffected: 8080020260903102346.f969626e , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:11.7::el8
    Create a notification for this product.
    Red Hat Red Hat Directory Server 11.9 for RHEL 8 Unaffected: 8100020260904171440.37ed7c03 , < * (rpm)
        cpe:/a:redhat:directory_server:11.9::el8
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12.2 E4S for RHEL 9 Unaffected: 9020020260903155914.1674d574 , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:12.2::el9
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12.4 E4S for RHEL 9 Unaffected: 9040020260903102623.1674d574 , < * (rpm)
        cpe:/a:redhat:directory_server_e4s:12.4::el9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.2.0-10.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:3.0.6-21.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.2.11.15-97.el6_10.1 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.3.11.1-15.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020260904155442.25e700aa , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 8040020260901171549.96015a92 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 8040020260901171549.96015a92 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 8060020260901145727.824efc52 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 8060020260901145727.824efc52 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 8080020260831180218.6dbb3803 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 8080020260831180218.6dbb3803 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.8.0-10.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:2.2.4-22.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:2.4.5-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:2.6.1-24.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Directory Server 12     cpe:/a:redhat:directory_server:12
    Create a notification for this product.
    Red Hat Red Hat Directory Server 13     cpe:/a:redhat:directory_server:13
    Create a notification for this product.
    Date Public
    2026-09-07 12:33
    Show details on NVD website

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        "dateReserved": "2026-08-05T08:26:17.044Z",
        "dateUpdated": "2026-09-08T13:04:34.933Z",
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    }

    CVE-2026-15816 (GCVE-0-2026-15816)

    Vulnerability from cvelistv5 – Published: 2026-08-07 10:33 – Updated: 2026-10-01 23:16
    VLAI
    Title
    Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
    Summary
    A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-07 14:32 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:54571 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:54575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:54576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57580 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57772 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57775 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:57785 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:60440 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:60445 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:61252 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62269 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62409 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:62549 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:63041 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:63044 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:65839 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:65851 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:66357 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:67857 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:69118 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:69119 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:70586 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:70615 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:74499 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-15816 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2459963
    https://bugzilla.redhat.com/show_bug.cgi?id=2500889 issue-trackingx_refsource_REDHAT
    https://github.com/dracutdevs/dracut/blob/master/…
    https://github.com/dracutdevs/dracut/blob/master/…
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:107-9.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:105-4.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:004-413.el6_10 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:033-577.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-246.git20260728.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-120.git20260728.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/o:redhat:enterprise_linux:9::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
        cpe:/o:redhat:rhel_e4s:9.2::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
        cpe:/o:redhat:rhel_e4s:9.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/o:redhat:rhel_eus:9.6::baseos
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202609080414-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202609011250-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202609140326-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202609011112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202609191027-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609031320-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609171815-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202609021231-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 4.20.9.6.202608260604-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.20::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 4.21.9.6.202609021100-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.21::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 4.22.9.8.202608251819-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.22::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 4.22.9.8.202609081748-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.22::el9
    Create a notification for this product.
    Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
    Create a notification for this product.
    Date Public
    2026-08-05 23:59
    Show details on NVD website

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    CVE-2026-6893 (GCVE-0-2026-6893)

    Vulnerability from cvelistv5 – Published: 2026-06-10 19:49 – Updated: 2026-10-01 23:16
    VLAI
    Title
    Dracut: dracut: root code execution via dhcp options command injection
    Summary
    A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-12 12:29 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
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    https://access.redhat.com/errata/RHSA-2026:70615 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:74499 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-6893 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2459963 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:107-7.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:105-4.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:004-413.el6_10 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:033-577.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-244.git20260529.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:049-138.git20220131.el8_4.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:049-203.git20220511.el8_6.1 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6::baseos
        cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8::baseos
        cpe:/o:redhat:rhel_tus:8.8::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-115.git20260527.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/o:redhat:enterprise_linux:9::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
        cpe:/o:redhat:rhel_e4s:9.2::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
        cpe:/o:redhat:rhel_e4s:9.4::baseos
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/o:redhat:rhel_eus:9.6::baseos
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202609080414-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202609011250-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202609140326-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202609011112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202609191027-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609031320-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202609171815-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202609021231-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
    Create a notification for this product.
    Red Hat Red Hat Hardened Images Unaffected: 109-6.hum1 , < * (rpm)
        cpe:/a:redhat:hummingbird:1
    Create a notification for this product.
    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:049-244.git20260529.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:049-223.git20230119.el8_8.1 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:057-115.git20260527.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:057-25.git20250717.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:057-54.git20250423.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:057-89.git20250311.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Date Public
    2026-06-10 19:39
    Show details on NVD website

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        "dateReserved": "2026-04-23T04:58:44.915Z",
        "dateUpdated": "2026-10-01T23:16:13.496Z",
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    }

    CVE-2026-45447 (GCVE-0-2026-45447)

    Vulnerability from cvelistv5 – Published: 2026-06-09 16:03 – Updated: 2026-09-18 12:04
    VLAI
    Title
    Heap Use-After-Free in the PKCS7_verify() Function
    Summary
    Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-10 03:59 UTC
    CWE
    References
    URL Tags
    https://openssl-library.org/news/secadv/20260609.txt vendor-advisory
    https://github.com/openssl/openssl/commit/3aad5eb… patch
    https://github.com/openssl/openssl/commit/c505d75… patch
    https://github.com/openssl/openssl/commit/7d4a980… patch
    https://github.com/openssl/openssl/commit/a541ae8… patch
    https://github.com/openssl/openssl/commit/9dfd688… patch
    https://access.redhat.com/security/cve/CVE-2026-45447 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2481898 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    https://access.redhat.com/errata/RHSA-2026:66524 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:58563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:59831 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25237 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36215 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36217 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39012 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39009 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:35869 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:44438 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25239 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26275 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:39981 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47737 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29197 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34102 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:58981 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26319 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47735 vendor-advisoryx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    OpenSSL OpenSSL Affected: 4.0.0 , < 4.0.1 (semver)
    Affected: 3.6.0 , < 3.6.3 (semver)
    Affected: 3.5.0 , < 3.5.7 (semver)
    Affected: 3.4.0 , < 3.4.6 (semver)
    Affected: 3.0.0 , < 3.0.21 (semver)
    Affected: 1.1.1 , < 1.1.1zh (custom)
    Affected: 1.0.2 , < 1.0.2zq (custom)
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    Red Hat Red Hat Enterprise Linux 10 Unaffected: 1:3.5.5-4.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.0.1e-61.el6_10.1 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 1:1.0.2k-26.el7_9.2 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:1.0.2o-4.el8_10.3 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 1:1.0.2o-4.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 1:1.0.2o-4.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 1:1.1.1k-16.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:3.5.5-4.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:1.1.1k-5.el9_8.4 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 1:1.1.1k-4.el9_2.2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 1:1.1.1k-5.el9_4.3 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 1:1.1.1k-5.el9_6.3 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202608241157-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.12::el8
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    Red Hat Cost Management 4 Unaffected: 1783539156 , < * (rpm)
        cpe:/a:redhat:cost_management:4::el9
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    Red Hat multicluster engine for Kubernetes 2.8 Unaffected: 1785078604 , < * (rpm)
        cpe:/a:redhat:multicluster_engine:2.8::el9
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    Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 Unaffected: 1785078581 , < * (rpm)
        cpe:/a:redhat:acm:2.13::el9
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    Red Hat Red Hat Discovery 2 Unaffected: 1782159791 , < * (rpm)
        cpe:/a:redhat:discovery:2::el9
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    Red Hat Red Hat Discovery 2 Unaffected: 1782166952 , < * (rpm)
        cpe:/a:redhat:discovery:2::el9
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    Red Hat Red Hat Insights proxy 1.5 Unaffected: 1782890503 , < * (rpm)
        cpe:/a:redhat:insights_proxy:1.5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525684 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525671 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525693 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1781525739 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787241211 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787135742 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Red Hat Update Infrastructure 5 Unaffected: 1787241260 , < * (rpm)
        cpe:/a:redhat:rhui:5::el9
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    Red Hat Multicluster Engine for Kubernetes     cpe:/a:redhat:multicluster_engine
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    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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    Red Hat Red Hat JBoss Core Services     cpe:/a:redhat:jboss_core_services:1
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    Red Hat Red Hat JBoss Web Server 6     cpe:/a:redhat:jboss_enterprise_web_server:6
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    Red Hat Red Hat JBoss Web Server 7     cpe:/a:redhat:jboss_enterprise_web_server:7
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    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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    Date Public
    2026-06-09 14:00
    Show details on NVD website

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                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:35869"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:44438"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:25239"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:26275"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:39981"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:47737"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:29197"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:34102"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:58981"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:26319"
              },
              {
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2026:47735"
              }
            ],
            "solutions": [
              {
                "lang": "en",
                "value": "RHSA-2026:66524: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION), Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:58563: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:59831: Red Hat OpenShift Container Platform 4.12"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:25237: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:36215: Red Hat Enterprise Linux AppStream (v. 8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:36217: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39012: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39009: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:35869: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:44438: Red Hat Enterprise Linux AppStream (v. 9)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:25239: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:26275: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.8)"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:39981: Cost Management 4"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:47737: Red Hat Advanced Cluster Management for Kubernetes 2.13"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:29197: Red Hat Discovery 2"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:34102: Red Hat Insights proxy 1.5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:58981: Red Hat Update Infrastructure 5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:26319: Red Hat Update Infrastructure 5"
              },
              {
                "lang": "en",
                "value": "RHSA-2026:47735: multicluster engine for Kubernetes 2.8"
              }
            ],
            "timeline": [
              {
                "lang": "en",
                "time": "2026-05-27T14:17:46.000Z",
                "value": "Reported to Red Hat."
              },
              {
                "lang": "en",
                "time": "2026-06-09T00:00:00.000Z",
                "value": "Made public."
              }
            ],
            "title": "openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()",
            "workarounds": [
              {
                "lang": "en",
                "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
              }
            ],
            "x_adpType": "supplier",
            "x_generator": {
              "engine": "sadp-cli 1.0.0"
            }
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "OpenSSL",
              "vendor": "OpenSSL",
              "versions": [
                {
                  "lessThan": "4.0.1",
                  "status": "affected",
                  "version": "4.0.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.6.3",
                  "status": "affected",
                  "version": "3.6.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.5.7",
                  "status": "affected",
                  "version": "3.5.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.4.6",
                  "status": "affected",
                  "version": "3.4.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "3.0.21",
                  "status": "affected",
                  "version": "3.0.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "1.1.1zh",
                  "status": "affected",
                  "version": "1.1.1",
                  "versionType": "custom"
                },
                {
                  "lessThan": "1.0.2zq",
                  "status": "affected",
                  "version": "1.0.2",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Thai Duong (Calif.io in collaboration with Claude and Anthropic Research)"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Igor Ustinov"
            }
          ],
          "datePublic": "2026-06-09T14:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\u003cbr\u003etrigger a use-after-free during PKCS#7 signature verification.\u003cbr\u003e\u003cbr\u003eImpact summary: A use-after-free may result in process crashes, heap\u003cbr\u003ecorruption, or potentially remote code execution.\u003cbr\u003e\u003cbr\u003eWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\u003cbr\u003edigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\u003cbr\u003eincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\u003cbr\u003euse of the BIO by the calling application results in a use-after-free\u003cbr\u003econdition.\u003cbr\u003e\u003cbr\u003eIn the common case this occurs when the application later calls\u003cbr\u003eBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\u003cbr\u003eon allocator behavior and application-specific BIO usage patterns, this\u003cbr\u003emay result in a crash or other memory corruption. In some application\u003cbr\u003econtexts this may potentially be exploitable for remote code execution.\u003cbr\u003e\u003cbr\u003eApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\u003cbr\u003ePKCS#7 APIs may be affected. Applications using the CMS APIs for this\u003cbr\u003eprocessing are not affected.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\u003cbr\u003eissue, as the affected code is outside the OpenSSL FIPS module boundary."
                }
              ],
              "value": "Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling application results in a use-after-free\ncondition.\n\nIn the common case this occurs when the application later calls\nBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\non allocator behavior and application-specific BIO usage patterns, this\nmay result in a crash or other memory corruption. In some application\ncontexts this may potentially be exploitable for remote code execution.\n\nApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\nPKCS#7 APIs may be affected. Applications using the CMS APIs for this\nprocessing are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."
            }
          ],
          "metrics": [
            {
              "format": "other",
              "other": {
                "content": {
                  "text": "High"
                },
                "type": "https://openssl-library.org/policies/general/security-policy/"
              }
            }
          ],
          "problemTypes": [
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              "descriptions": [
                {
                  "cweId": "CWE-416",
                  "description": "CWE-416 Use After Free",
                  "lang": "en",
                  "type": "CWE"
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            }
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          "providerMetadata": {
            "dateUpdated": "2026-06-10T07:48:15.381Z",
            "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
            "shortName": "openssl"
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            {
              "name": "OpenSSL Advisory",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://openssl-library.org/news/secadv/20260609.txt"
            },
            {
              "name": "4.0.1 git commit",
              "tags": [
                "patch"
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              "url": "https://github.com/openssl/openssl/commit/3aad5eb7af4de4ee0633c30a8541a54d9bbde63c"
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            {
              "name": "3.6.3 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/c505d7559da5d5f9f2c3913c6883a5562ce7273e"
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              "name": "3.5.7 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/7d4a980c62258c5910cc883936e0c8dbab4d75a8"
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            {
              "name": "3.4.6 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/a541ae8bfe849a30cc885e8780715c0f488e496c"
            },
            {
              "name": "3.0.21 git commit",
              "tags": [
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              "url": "https://github.com/openssl/openssl/commit/9dfd688ad2290fc5075cacbc9bf0c9a93eefed54"
            }
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          "source": {
            "discovery": "UNKNOWN"
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          "title": "Heap Use-After-Free in the PKCS7_verify() Function",
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      },
      "cveMetadata": {
        "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "assignerShortName": "openssl",
        "cveId": "CVE-2026-45447",
        "datePublished": "2026-06-09T16:03:32.914Z",
        "dateReserved": "2026-05-12T14:34:06.277Z",
        "dateUpdated": "2026-09-18T12:04:50.529Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50263 (GCVE-0-2026-50263)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:56
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-08 16:01 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50263 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485388 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

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              "name": "RHSA-2026:26709",
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              "name": "RHSA-2026:36085",
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              "name": "RHSA-2026:36792",
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                "x_refsource_REDHAT"
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              "name": "RHSA-2026:36798",
              "tags": [
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              "name": "RHSA-2026:38810",
              "tags": [
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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
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              "name": "RHSA-2026:46377",
              "tags": [
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              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
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              "name": "RHSA-2026:46385",
              "tags": [
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                "x_refsource_REDHAT"
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              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
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              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
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              "name": "RHSA-2026:46460",
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                "x_refsource_REDHAT"
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              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
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        "datePublished": "2026-06-05T10:36:46.377Z",
        "dateReserved": "2026-06-04T14:55:24.012Z",
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    }

    CVE-2026-50262 (GCVE-0-2026-50262)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:55
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes
    Summary
    An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 13:37 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50262 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485387 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

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    CVE-2026-50261 (GCVE-0-2026-50261)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-05 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50261 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485386 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50261",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-05T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-06T03:56:14.286Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
                    "version": "0:24.1.9-4.el10_2.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
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                    "status": "unaffected",
                    "version": "0:24.1.5-6.el10_0.1",
                    "versionType": "rpm"
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
                    "versionType": "rpm"
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.15.0-10.el8_10",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_tus:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-19.el8_8",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_tus:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
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            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
            {
              "name": "RHSA-2026:26562",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26562"
            },
            {
              "name": "RHSA-2026:26566",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26566"
            },
            {
              "name": "RHSA-2026:26590",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26590"
            },
            {
              "name": "RHSA-2026:26610",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26610"
            },
            {
              "name": "RHSA-2026:26709",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26709"
            },
            {
              "name": "RHSA-2026:28923",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:28923"
            },
            {
              "name": "RHSA-2026:29844",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:29844"
            },
            {
              "name": "RHSA-2026:36083",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36083"
            },
            {
              "name": "RHSA-2026:36085",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36085"
            },
            {
              "name": "RHSA-2026:36086",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36086"
            },
            {
              "name": "RHSA-2026:36087",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36087"
            },
            {
              "name": "RHSA-2026:36632",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36632"
            },
            {
              "name": "RHSA-2026:36633",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36633"
            },
            {
              "name": "RHSA-2026:36634",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36634"
            },
            {
              "name": "RHSA-2026:36768",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36768"
            },
            {
              "name": "RHSA-2026:36791",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36791"
            },
            {
              "name": "RHSA-2026:36792",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36792"
            },
            {
              "name": "RHSA-2026:36798",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36798"
            },
            {
              "name": "RHSA-2026:38502",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38502"
            },
            {
              "name": "RHSA-2026:38810",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
            {
              "name": "RHSA-2026:46377",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46377"
            },
            {
              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
            {
              "name": "RHSA-2026:46385",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
            {
              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
            {
              "name": "RHSA-2026:46460",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:49519"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-50261"
            },
            {
              "name": "RHBZ#2485386",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485386"
            },
            {
              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/bdd7bf57af208b1ddf57d4683d67104443b44812"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
            {
              "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-15T03:14:46.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-416: Use After Free"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50261",
        "datePublished": "2026-06-05T10:36:33.418Z",
        "dateReserved": "2026-06-04T14:55:24.012Z",
        "dateUpdated": "2026-09-28T11:46:21.412Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50260 (GCVE-0-2026-50260)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:36 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50260 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485385 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

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                "packageName": "xorg-x11-server-Xwayland",
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                "product": "Red Hat Enterprise Linux 9",
                "vendor": "Red Hat",
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                "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
                "vendor": "Red Hat",
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              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
            {
              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
            {
              "name": "RHSA-2026:46460",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:49519"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-50260"
            },
            {
              "name": "RHBZ#2485385",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2485385"
            },
            {
              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/f5abfb61994471023d8c6470428c8e30c411cc0b"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
            {
              "url": "https://redhat.atlassian.net/browse/PSIRTSUPT-16950"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-15T03:14:46.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-416: Use After Free"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50260",
        "datePublished": "2026-06-05T10:36:30.319Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:46:16.476Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50258 (GCVE-0-2026-50258)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50258 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485383 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

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    CVE-2026-50259 (GCVE-0-2026-50259)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
    URL Tags
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    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
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    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50259 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485384 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
    Create a notification for this product.
    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50259",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-09T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-10T03:58:51.221Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el10_2.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.5-6.el10_0.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
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    CVE-2026-50256 (GCVE-0-2026-50256)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:45
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
    Summary
    A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-10 03:58 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
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    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50256 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485380 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-50256",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-10T03:58:53.147448Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-10T13:34:18.431Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          },
          {
            "affected": [
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux:10.2"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el10_2.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:enterprise_linux_eus:10.0"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.5-6.el10_0.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.1.0-25.el6_10.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.4-35.el7_9",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/o:redhat:rhel_els:7"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.8.0-36.el7_9.5",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-20.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-28.el8_10.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.15.0-10.el8_10",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.10-5.el8_4",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.4"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.11.0-8.el8_4.16",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-2.el8_6.7",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_aus:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-8.el8_6",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_eus_long_life:8.6"
                ],
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              "cpes": [
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              "defaultStatus": "unknown",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 6",
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          ],
          "credits": [
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              "lang": "en",
              "value": "Upstream acknowledges Anonymous (Trend Micro Zero Day Initiative) as the original reporter."
            }
          ],
          "datePublic": "2026-06-02T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library\u0027s maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2\u0027s alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root."
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          "references": [
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            },
            {
              "name": "RHSA-2026:26566",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26566"
            },
            {
              "name": "RHSA-2026:26590",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26590"
            },
            {
              "name": "RHSA-2026:26610",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26610"
            },
            {
              "name": "RHSA-2026:26709",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:26709"
            },
            {
              "name": "RHSA-2026:28923",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:28923"
            },
            {
              "name": "RHSA-2026:29844",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:29844"
            },
            {
              "name": "RHSA-2026:36083",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36083"
            },
            {
              "name": "RHSA-2026:36085",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36085"
            },
            {
              "name": "RHSA-2026:36086",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36086"
            },
            {
              "name": "RHSA-2026:36087",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36087"
            },
            {
              "name": "RHSA-2026:36632",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36632"
            },
            {
              "name": "RHSA-2026:36633",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36633"
            },
            {
              "name": "RHSA-2026:36634",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36634"
            },
            {
              "name": "RHSA-2026:36768",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36768"
            },
            {
              "name": "RHSA-2026:36791",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36791"
            },
            {
              "name": "RHSA-2026:36792",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36792"
            },
            {
              "name": "RHSA-2026:36798",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:36798"
            },
            {
              "name": "RHSA-2026:38502",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38502"
            },
            {
              "name": "RHSA-2026:38810",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:38810"
            },
            {
              "name": "RHSA-2026:46377",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46377"
            },
            {
              "name": "RHSA-2026:46382",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46382"
            },
            {
              "name": "RHSA-2026:46385",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46385"
            },
            {
              "name": "RHSA-2026:46392",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46392"
            },
            {
              "name": "RHSA-2026:46456",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46456"
            },
            {
              "name": "RHSA-2026:46460",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46460"
            },
            {
              "name": "RHSA-2026:46473",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:46473"
            },
            {
              "name": "RHSA-2026:49519",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:49519"
            },
            {
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                "x_refsource_REDHAT"
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              "name": "RHBZ#2485380",
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            },
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              "url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/bb5158f962dc935e58ef8b4b5fcb31be201a6e07"
            },
            {
              "url": "https://lists.x.org/archives/xorg-announce/2026-June/003702.html"
            },
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              "time": "2026-05-15T03:14:46.000Z",
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            },
            {
              "lang": "en",
              "time": "2026-06-02T00:00:00.000Z",
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          ],
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          "workarounds": [
            {
              "lang": "en",
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        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50256",
        "datePublished": "2026-06-05T10:31:22.122Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:45:55.534Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-50257 (GCVE-0-2026-50257)

    Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-09-28 11:46
    VLAI
    Title
    Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()
    Summary
    A use-after-free flaw was found in the X.Org X server and Xwayland in miSyncDestroyFence(). A client that sets up multiple fence triggers can trigger a use-after-free function pointer call. An attacker would connect to the X server to set up a fence and await that fence, then a second X connection destroys the fence, causing the use-after-free. This may be used to crash the server, or for privilege escalation if the X server runs as root.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-09 00:00 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:26562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26566 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26610 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26709 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28923 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:29844 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36083 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36085 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36086 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36087 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36632 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36633 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36634 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36768 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36791 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36792 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36798 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38502 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:38810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46377 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46382 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46385 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46392 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46460 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:46473 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:49519 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-50257 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2485382 issue-trackingx_refsource_REDHAT
    https://gitlab.freedesktop.org/xorg/xserver/-/com…
    https://lists.x.org/archives/xorg-announce/2026-J…
    https://redhat.atlassian.net/browse/PSIRTSUPT-16950
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.9-4.el10_2.2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0.1 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.18 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-35.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.5 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
        cpe:/a:redhat:enterprise_linux:8::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
        cpe:/a:redhat:enterprise_linux:9::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4::appstream
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-20.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.20.11-28.el8_10.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.15.0-10.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-5.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.16 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.11-8.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:21.1.3-2.el8_6.7 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-19.el8_8 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.18 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:24.1.9-4.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-34.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.2 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-21.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.15 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.20.11-29.el9_4 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:22.1.9-8.el9_4.1 , < * (rpm)
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.13.1-8.el9_4.10 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-34.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6.1 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-11.el9_6 , < * (rpm)
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    Date Public
    2026-06-02 00:00
    Show details on NVD website

    {
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                    "id": "CVE-2026-50257",
                    "options": [
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                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
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                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-09T00:00:00+00:00",
                    "version": "2.0.3"
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
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                "versions": [
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              {
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                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                "vendor": "Red Hat",
                "versions": [
                  {
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                    "status": "unaffected",
                    "version": "0:1.12.0-6.el8_6.18",
                    "versionType": "rpm"
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
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              },
              {
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                "defaultStatus": "affected",
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                "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                "vendor": "Red Hat",
                "versions": [
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                    "lessThan": "*",
                    "status": "unaffected",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
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                    "status": "unaffected",
                    "version": "0:1.20.11-19.el8_8",
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                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-13.el8_8.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
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                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-15.el8_8.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_e4s:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.20.11-19.el8_8",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_e4s:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:21.1.3-13.el8_8.1",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:rhel_e4s:8.8"
                ],
                "defaultStatus": "affected",
                "packageName": "tigervnc",
                "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:1.12.0-15.el8_8.18",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:9"
                ],
                "defaultStatus": "affected",
                "packageName": "xorg-x11-server-Xwayland",
                "product": "Red Hat Enterprise Linux 9",
                "vendor": "Red Hat",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "0:24.1.9-4.el9_8.2",
                    "versionType": "rpm"
                  }
                ]
              },
              {
                "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                "cpes": [
                  "cpe:/a:redhat:enterprise_linux:9"
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              "time": "2026-05-15T03:14:46.000Z",
              "value": "Reported to Red Hat."
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          "workarounds": [
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              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
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          "x_generator": {
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          "x_redhatCweChain": "CWE-416: Use After Free"
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      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-50257",
        "datePublished": "2026-06-05T10:31:22.052Z",
        "dateReserved": "2026-06-04T14:55:24.011Z",
        "dateUpdated": "2026-09-28T11:46:04.104Z",
        "state": "PUBLISHED"
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-46243 (GCVE-0-2026-46243)

    Vulnerability from cvelistv5 – Published: 2026-06-01 16:22 – Updated: 2026-09-01 12:04
    VLAI
    Title
    smb: client: reject userspace cifs.spnego descriptions
    Summary
    In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as kernel-originating inputs. However, userspace can also create keys of this type through request_key(2) or add_key(2), allowing those fields to be supplied without CIFS origin. Only accept cifs.spnego descriptions while CIFS is using its private spnego_cred to request the key.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-01 00:00 UTC
    CWE
    • CWE-20 - Improper Input Validation
    • CWE-825 - Expired Pointer Dereference
    References
    URL Tags
    https://git.kernel.org/stable/c/7713bd320ed4fc3d0…
    https://git.kernel.org/stable/c/9544559e59438a4b6…
    https://git.kernel.org/stable/c/cf20038657d6d4974…
    https://git.kernel.org/stable/c/2035acfb17221729b…
    https://git.kernel.org/stable/c/a3bbda6502a9398b8…
    https://git.kernel.org/stable/c/91f89c1d83e804176…
    https://git.kernel.org/stable/c/0aece6685fc80a8de…
    https://git.kernel.org/stable/c/3da1fdf4efbc49004…
    https://github.com/manizada/CIFSwitch exploit
    http://www.openwall.com/lists/oss-security/2026/06/01/6
    https://access.redhat.com/security/cve/CVE-2026-46243 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2481486 issue-trackingx_refsource_REDHAT
    https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
    https://access.redhat.com/errata/RHSA-2026:23395 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33486 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27719 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27729 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:41236 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34048 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:40021 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28887 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:28962 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:36620 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:47727 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34815 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34757 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34788 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:34764 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:25908 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23329 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26515 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27735 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:27708 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24381 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33225 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23258 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33220 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26535 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26570 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33219 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33221 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33222 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33223 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:33224 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23259 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:26462 vendor-advisoryx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Linux Linux Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 7713bd320ed4fc3d08a227cd8e41242219a16981 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 9544559e59438a4b609b2fdfa0763d8360572824 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < cf20038657d6d4974349556a34e08fe0490bebbc (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 2035acfb17221729b1b8ac335e941868a04ca079 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < a3bbda6502a9398b816fa2e71c9a3f955f58013d (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 91f89c1d83e80417629791fcef6af8140d7d01c8 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 0aece6685fc80a8de492688ca2315fb86ec379c7 (git)
    Affected: f1d662a7d5e5322e583aad6b3cfec03d8f27b435 , < 3da1fdf4efbc490041eb4f836bf596201203f8f2 (git)
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    Linux Linux Affected: 2.6.24
    Unaffected: 0 , < 2.6.24 (semver)
    Unaffected: 5.10.258 , ≤ 5.10.* (semver)
    Unaffected: 5.15.209 , ≤ 5.15.* (semver)
    Unaffected: 6.1.175 , ≤ 6.1.* (semver)
    Unaffected: 6.6.142 , ≤ 6.6.* (semver)
    Unaffected: 6.12.92 , ≤ 6.12.* (semver)
    Unaffected: 6.18.34 , ≤ 6.18.* (semver)
    Unaffected: 7.0.11 , ≤ 7.0.* (semver)
    Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    Red Hat NVIDIA for RHEL 10 Unaffected: 0:6.12.0-212.9.el10nv , < * (rpm)
    Unaffected: 0:6.12.0-231.12.el10nv , < * (rpm)
        cpe:/a:redhat:enterprise_linux_nvidia:10::el10
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    Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:6.12.0-211.20.1.el10_2 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10.2
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    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:6.12.0-55.79.1.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
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    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:2.6.32-754.61.1.el6 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.155.1.rt56.1307.el7 , < * (rpm)
        cpe:/a:redhat:rhel_extras_rt_els:7
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.153.1.el7 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.129.1.rt7.470.el8_10 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:8::nfv
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.129.1.el8_10 , < * (rpm)
        cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.4
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    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.4
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    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-372.196.1.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_aus:8.6
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    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:4.18.0-372.196.1.el8_6 , < * (rpm)
        cpe:/o:redhat:rhel_eus_long_life:8.6
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    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm)
        cpe:/o:redhat:rhel_tus:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:4.18.0-477.147.1.el8_8 , < * (rpm)
        cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.8
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-687.13.1.el9_8 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9
        cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.176.1.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.176.1.rt14.461.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::nfv
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    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.2
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:5.14.0-427.132.1.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.4
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:5.14.0-570.123.1.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6
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    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support     cpe:/o:redhat:rhel_eus:9.6
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    Red Hat Red Hat OpenShift Container Platform 4.12 Unaffected: 412.86.202606251120-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.12::el8
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    Red Hat Red Hat OpenShift Container Platform 4.13 Unaffected: 413.92.202607141229-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.13::el9
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    Red Hat Red Hat OpenShift Container Platform 4.14 Unaffected: 414.92.202606231112-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.14::el9
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    Red Hat Red Hat OpenShift Container Platform 4.15 Unaffected: 415.92.202606200237-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.15::el9
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    Red Hat Red Hat OpenShift Container Platform 4.16 Unaffected: 416.94.202607021016-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.16::el9
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    Red Hat Red Hat OpenShift Container Platform 4.17 Unaffected: 417.94.202607240132-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.17::el9
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    Red Hat Red Hat OpenShift Container Platform 4.18 Unaffected: 418.94.202606250458-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.18::el9
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    Red Hat Red Hat OpenShift Container Platform 4.19 Unaffected: 4.19.9.6.202606302000-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.19::el9
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    Red Hat Red Hat OpenShift Container Platform 4.20 Unaffected: 4.20.9.6.202607010620-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.20::el9
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    Red Hat Red Hat OpenShift Container Platform 4.21 Unaffected: 4.21.9.6.202607011303-0 , < * (rpm)
        cpe:/a:redhat:openshift:4.21::el9
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    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-46243",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-01T00:00:00+00:00",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-20",
                    "description": "CWE-20 Improper Input Validation",
                    "lang": "en",
                    "type": "CWE"
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            "providerMetadata": {
              "dateUpdated": "2026-06-02T03:56:00.563Z",
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            "references": [
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                "tags": [
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                "url": "https://github.com/manizada/CIFSwitch"
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            "title": "CISA ADP Vulnrichment"
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            "title": "CVE Program Container"
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                "cpes": [
                  "cpe:/a:redhat:enterprise_linux_nvidia:10::el10"
                ],
                "defaultStatus": "affected",
                "packageName": "kernel",
                "product": "NVIDIA for RHEL 10",
                "vendor": "Red Hat",
                "versions": [
                  {
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    CVE-2026-34002 (GCVE-0-2026-34002)

    Vulnerability from cvelistv5 – Published: 2026-05-05 14:41 – Updated: 2026-06-08 03:30
    VLAI
    Title
    Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling
    Summary
    A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map handling. An attacker with access to the X11 server can exploit this by sending a malformed request, which causes the server to read beyond its intended memory boundaries. This can lead to the exposure of sensitive information or cause the server to crash, resulting in a denial of service.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-06 14:27 UTC
    CWE
    • CWE-805 - Buffer Access with Incorrect Length Value
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:20547 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20555 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20557 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20558 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20560 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20561 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21699 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21712 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21715 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21716 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21718 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21741 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21742 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22424 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23254 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23255 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23496 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24341 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-34002 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2451112 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.16 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-34.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.4 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:21.1.3-5.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.20.11-13.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.11.0-22.el9_0.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-20.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.14 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.20.11-28.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
        cpe:/a:redhat:rhel_eus:9.4::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:22.1.9-8.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.13.1-8.el9_4.9 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-33.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-10.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Date Public
    2026-05-05 14:01
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-34002",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-06T14:27:00.488000Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-06T14:27:54.934Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux_eus:10.0"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:24.1.5-6.el10_0",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:6"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.1.0-25.el6_10.16",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.4-34.el7_9",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.8.0-36.el7_9.4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                "cpe:/a:redhat:rhel_tus:8.8::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-13.el8_8",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                "cpe:/a:redhat:rhel_tus:8.8::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
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    CVE-2026-34000 (GCVE-0-2026-34000)

    Vulnerability from cvelistv5 – Published: 2026-05-05 14:41 – Updated: 2026-06-08 03:30
    VLAI
    Title
    Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.
    Summary
    A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server, either locally or remotely, can exploit this without user interaction. This could lead to the disclosure of memory contents or cause a denial of service by crashing the server.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-05 18:51 UTC
    CWE
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2026:19342 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20547 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20555 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20557 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20558 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20560 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20561 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20562 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20563 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20575 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20576 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:20590 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21699 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21712 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21715 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21716 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21718 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21741 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:21742 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22424 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:22456 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23254 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23255 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:23496 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2026:24341 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/security/cve/CVE-2026-34000 vdb-entryx_refsource_REDHAT
    https://bugzilla.redhat.com/show_bug.cgi?id=2451107 issue-trackingx_refsource_REDHAT
    Impacted products
    Vendor Product Version
    Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:24.1.5-6.el10_0 , < * (rpm)
        cpe:/o:redhat:enterprise_linux_eus:10.0
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.16 , < * (rpm)
        cpe:/o:redhat:rhel_els:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-34.el7_9 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9.4 , < * (rpm)
        cpe:/o:redhat:rhel_els:7
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.20.10-4.el8_4 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.11.0-8.el8_4.15 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.4::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:1.12.0-6.el8_6.17 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:21.1.3-2.el8_6.6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.20.11-7.el8_6 , < * (rpm)
        cpe:/a:redhat:rhel_aus:8.6::appstream
        cpe:/a:redhat:rhel_e4s:8.6::appstream
        cpe:/a:redhat:rhel_tus:8.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:21.1.3-13.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.20.11-18.el8_8 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.12.0-15.el8_8.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:8.8::appstream
        cpe:/a:redhat:rhel_tus:8.8::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.15.0-7.el9_8.1 , < * (rpm)
        cpe:/a:redhat:enterprise_linux:9::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:21.1.3-5.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.20.11-13.el9_0 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.11.0-22.el9_0.17 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.0::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:21.1.3-10.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.11-20.el9_2 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.12.0-14.el9_2.14 , < * (rpm)
        cpe:/a:redhat:rhel_e4s:9.2::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.20.11-28.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
        cpe:/a:redhat:rhel_eus:9.4::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:22.1.9-8.el9_4 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.13.1-8.el9_4.9 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.4::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.20.11-33.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:23.2.7-6.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
        cpe:/a:redhat:rhel_eus:9.6::crb
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.14.1-10.el9_6 , < * (rpm)
        cpe:/a:redhat:rhel_eus:9.6::appstream
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
    Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
    Create a notification for this product.
    Date Public
    2026-05-05 14:01
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-34000",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-05T18:51:27.642857Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-05T18:52:32.853Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux_eus:10.0"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:24.1.5-6.el10_0",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:6"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.1.0-25.el6_10.16",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.4-34.el7_9",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:rhel_els:7"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.8.0-36.el7_9.4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.10-4.el8_4",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.4::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.11.0-8.el8_4.15",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "tigervnc",
              "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.12.0-6.el8_6.17",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server",
              "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:1.20.11-7.el8_6",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:rhel_aus:8.6::appstream",
                "cpe:/a:redhat:rhel_e4s:8.6::appstream",
                "cpe:/a:redhat:rhel_tus:8.6::appstream"
              ],
              "defaultStatus": "affected",
              "packageName": "xorg-x11-server-Xwayland",
              "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "0:21.1.3-2.el8_6.6",
                  "versionType": "rpm"
                }
              ]
            },
            {
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          ],
          "title": "Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.",
          "workarounds": [
            {
              "lang": "en",
              "value": "To mitigate this vulnerability, restrict access to the X11 server. On systems where a graphical environment is not required, consider disabling the X server entirely by setting the default system target to multi-user mode. For systems requiring the X server, ensure that X11 forwarding is disabled in SSH configurations if not explicitly needed, and restrict direct X11 connections to trusted users and networks through firewall rules. If changes are made to SSH configuration, the `sshd` service must be restarted. If the default system target is changed, a system reboot is required."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-125: Out-of-bounds Read"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-34000",
        "datePublished": "2026-05-05T14:41:05.468Z",
        "dateReserved": "2026-03-25T04:53:13.614Z",
        "dateUpdated": "2026-06-08T03:30:12.287Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }