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4 vulnerabilities by acl project
CVE-2026-54370 (GCVE-0-2026-54370)
Vulnerability from nvd – Published: 2026-06-29 12:38 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
EPSS
VEX
Title
acl < 2.4.0 TOCTOU Symlink Traversal via getfacl/setfacl/chacl
Summary
acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 14:49 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.nongnu.org/cgit/acl.git… | patch |
| https://cgit.git.savannah.nongnu.org/cgit/acl.git… | issue-tracking |
| https://www.vulncheck.com/advisories/acl-toctou-s… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| acl project | acl |
Affected:
0 , < 2.4.0
(semver)
cpe:2.3:a:acl_project:acl:*:*:*:*:*:*:*:* |
Date Public
2026-06-29 00:00
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CVE-2026-54369 (GCVE-0-2026-54369)
Vulnerability from nvd – Published: 2026-06-29 12:37 – Updated: 2026-09-14 12:04 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
acl < 2.4.0 Symlink Traversal Privilege Escalation via libacl Functions
Summary
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:56 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
20 references
Impacted products
22 products
| Vendor | Product | Version | |
|---|---|---|---|
| acl project | acl |
Affected:
0 , < 2.4.0
(semver)
cpe:2.3:a:acl_project:acl:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.4.0-1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.4.0-0.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.4.0-1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.4.0-1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202608130832-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821670 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821750 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
2.4.0-0.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1786433656 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.10.2 |
Unaffected:
1785704636 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.10::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794818 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794778 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795112 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794289 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795076 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241211 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787135742 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241260 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-29 00:00
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CVE-2026-54370 (GCVE-0-2026-54370)
Vulnerability from cvelistv5 – Published: 2026-06-29 12:38 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
EPSS
VEX
Title
acl < 2.4.0 TOCTOU Symlink Traversal via getfacl/setfacl/chacl
Summary
acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 14:49 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.nongnu.org/cgit/acl.git… | patch |
| https://cgit.git.savannah.nongnu.org/cgit/acl.git… | issue-tracking |
| https://www.vulncheck.com/advisories/acl-toctou-s… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| acl project | acl |
Affected:
0 , < 2.4.0
(semver)
cpe:2.3:a:acl_project:acl:*:*:*:*:*:*:*:* |
Date Public
2026-06-29 00:00
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CVE-2026-54369 (GCVE-0-2026-54369)
Vulnerability from cvelistv5 – Published: 2026-06-29 12:37 – Updated: 2026-09-14 12:04 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
acl < 2.4.0 Symlink Traversal Privilege Escalation via libacl Functions
Summary
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:56 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
20 references
Impacted products
22 products
| Vendor | Product | Version | |
|---|---|---|---|
| acl project | acl |
Affected:
0 , < 2.4.0
(semver)
cpe:2.3:a:acl_project:acl:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.4.0-1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.4.0-0.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.4.0-1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.4.0-1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202608130832-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821670 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821750 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
2.4.0-0.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1786433656 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.10.2 |
Unaffected:
1785704636 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.10::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794818 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794778 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795112 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794289 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795076 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241211 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787135742 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241260 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-29 00:00
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