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 l…
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…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Lint boundary warnings (2)
The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).
-
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=24a227d0ab8576612194f8a56c2314389adc74a5 -
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=3589787cd589b34bdd9265936e17190b6d3f17d1
Sources
- NVD DATABASE
Original Links
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=24a227d0ab8576612194f8a56c2314389adc74a5
- https://cgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=3589787cd589b34bdd9265936e17190b6d3f17d1
- https://www.vulncheck.com/advisories/acl-symlink-traversal-privilege-escalation-via-libacl-functions
- https://access.redhat.com/errata/RHSA-2026:34351
- https://access.redhat.com/errata/RHSA-2026:42736
- https://access.redhat.com/errata/RHSA-2026:42739
- https://access.redhat.com/errata/RHSA-2026:43420
- 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
Timeline
- nvd_ingest NVD