Symlink Attack Affecting acl-dev/acl package, versions [,2.4.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.14% (4th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-ACLDEVACL-17705245
  • published30 Jun 2026
  • disclosed29 Jun 2026
  • creditAndrew Tridgell

Introduced: 29 Jun 2026

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

How to fix?

Upgrade acl-dev/acl to version 2.4.0 or higher.

Overview

Affected versions of this package are vulnerable to Symlink Attack via the libacl functions. An attacker can gain unauthorized access to or modify access control lists by replacing a pathname component with a symbolic link, redirecting ACL read or write operations to arbitrary files or directories.

CVSS Base Scores

version 4.0
version 3.1