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acl: Symlink traversal privilege escalation via libacl functions

🗓️ 22 Jul 2026 10:39:49Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

Acl libacl pathname flaw lets local attacker use a symlink to redirect ACL reads and writes, enabling escalation.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64libacl2.4.0-1.el8_10libacl-2.4.0-1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686libacl2.4.0-1.el8_10libacl-2.4.0-1.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64lelibacl2.4.0-1.el8_10libacl-2.4.0-1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xlibacl2.4.0-1.el8_10libacl-2.4.0-1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64libacl2.4.0-1.el8_10libacl-2.4.0-1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64libacl-debuginfo2.4.0-1.el8_10libacl-debuginfo-2.4.0-1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686libacl-debuginfo2.4.0-1.el8_10libacl-debuginfo-2.4.0-1.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64lelibacl-debuginfo2.4.0-1.el8_10libacl-debuginfo-2.4.0-1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xlibacl-debuginfo2.4.0-1.el8_10libacl-debuginfo-2.4.0-1.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64libacl-debuginfo2.4.0-1.el8_10libacl-debuginfo-2.4.0-1.el8_10.x86_64.rpm
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21 Aug 2026 12:41Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.1
CVSS 48.4
EPSS0.00153
SSVC
11