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CVE-2026-54369

7.1 · HIGH

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…

Published Jun 29, 2026CWE-59EPSS 0.15%

Overview

CVE-2026-54369 is a high-severity vulnerability. It was published on June 29, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=24a227d0ab8576612194f8a56c2314389adc74a5Refcgit.git.savannah.nongnu.org/cgit/acl.git/commit/?id=3589787cd589b34bdd9265936e17190b6d3f17d1Refwww.vulncheck.com/advisories/acl-symlink-traversal-privilege-escalation-via-libacl-functionsRefaccess.redhat.com/errata/RHSA-2026:34351Refaccess.redhat.com/errata/RHSA-2026:42736Refaccess.redhat.com/errata/RHSA-2026:42739Refaccess.redhat.com/errata/RHSA-2026:43420Refaccess.redhat.com/errata/RHSA-2026:44481Refaccess.redhat.com/errata/RHSA-2026:46836Refaccess.redhat.com/errata/RHSA-2026:50205

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54369?

CVE-2026-54369 is a high-severity vulnerability. It was published on June 29, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-54369?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-54369?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54369?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54369 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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