GHSA-53ch-pxc8-6g72HighCVSS 7.1
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-54369
- 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://github.com/advisories/GHSA-53ch-pxc8-6g72