CVE-2026-54369 | BDVDB-2026-344019 Detail
acl projectacl
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: local.
Weaknesses#
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References#
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=3589787cd589b34bdd9265936e17190b6d3f17d1
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=24a227d0ab8576612194f8a56c2314389adc74a5
- https://www.vulncheck.com/advisories/acl-symlink-traversal-privilege-escalation-via-libacl-functions
- https://access.redhat.com/security/cve/CVE-2026-54369
- https://bugzilla.redhat.com/show_bug.cgi?id=2490277
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54369.json
- https://access.redhat.com/errata/RHSA-2026:54769
- https://access.redhat.com/errata/RHSA-2026:64805
- https://access.redhat.com/errata/RHSA-2026:42739
- https://access.redhat.com/errata/RHSA-2026:67142
- https://access.redhat.com/errata/RHSA-2026:67144
- https://access.redhat.com/errata/RHSA-2026:67140
- https://access.redhat.com/errata/RHSA-2026:42736
- https://access.redhat.com/errata/RHSA-2026:43420
- https://access.redhat.com/errata/RHSA-2026:46836
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.