Link Following Affecting acl package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-DEBIAN11-ACL-17677874
  • published30 Jun 2026
  • disclosed29 Jun 2026

Introduced: 29 Jun 2026

CVE-2026-54369  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 acl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream acl package and not the acl package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1