RLSA-2026:81532 (CVE-2026-103111)
Vulnerability from osv_rocky – Published: 2026-10-14 06:30 – Updated: 2026-10-14 12:12 – Source websiteThe pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl.
Security Fix(es):
-
pcre2: PCRE2: Out-of-bounds write allows arbitrary code execution via crafted regular expressions (CVE-2026-86145)
-
PCRE2: PCRE2: Out-of-bounds read via invalid UTF data during JIT fallback (CVE-2026-89156)
-
pcre2: PCRE2: Out-of-bounds write via large pattern input (CVE-2026-89157)
-
pcre2: PCRE2: Denial of Service via out-of-bounds read during invalid UTF matching (CVE-2026-89160)
-
PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158)
-
pcre2: PCRE2: Memory corruption vulnerability in pcre2_jit_match (CVE-2026-89161)
-
pcre2: pcre2: Out-of-bounds write via crafted regular expression (CVE-2026-103111)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
{
"affected": [
{
"package": {
"ecosystem": "Rocky Linux:9",
"name": "pcre2",
"purl": "pkg:rpm/rocky-linux/pcre2?distro=rocky-linux-9\u0026epoch=0"
},
"ranges": [
{
"database_specific": {
"yum_repository": "BaseOS"
},
"events": [
{
"introduced": "0"
},
{
"fixed": "0:10.40-7.el9_8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"credits": [
{
"name": "Rocky Enterprise Software Foundation"
},
{
"name": "Red Hat"
}
],
"database_specific": {
"license": "CC-BY-4.0",
"license_url": "https://creativecommons.org/licenses/by/4.0/",
"source_advisory": "RHSA-2026:81532"
},
"details": "The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl. \n\nSecurity Fix(es):\n\n* pcre2: PCRE2: Out-of-bounds write allows arbitrary code execution via crafted regular expressions (CVE-2026-86145)\n\n* PCRE2: PCRE2: Out-of-bounds read via invalid UTF data during JIT fallback (CVE-2026-89156)\n\n* pcre2: PCRE2: Out-of-bounds write via large pattern input (CVE-2026-89157)\n\n* pcre2: PCRE2: Denial of Service via out-of-bounds read during invalid UTF matching (CVE-2026-89160)\n\n* PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms (CVE-2026-89158)\n\n* pcre2: PCRE2: Memory corruption vulnerability in pcre2_jit_match (CVE-2026-89161)\n\n* pcre2: pcre2: Out-of-bounds write via crafted regular expression (CVE-2026-103111)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
"id": "RLSA-2026:81532",
"modified": "2026-10-14T12:12:51.112922Z",
"published": "2026-10-14T06:30:05.473043Z",
"references": [
{
"type": "ADVISORY",
"url": "https://errata.rockylinux.org/RLSA-2026:81532"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528993"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531743"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531744"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531745"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531746"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531747"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543797"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:81532"
}
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
"type": "CVSS_V3"
}
],
"summary": "Important: pcre2 security update",
"upstream": [
"CVE-2026-103111",
"CVE-2026-86145",
"CVE-2026-89156",
"CVE-2026-89157",
"CVE-2026-89158",
"CVE-2026-89160",
"CVE-2026-89161"
]
}
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