CVE-2026-3839 PUBLISHED

Unraid Authentication Request Path Traversal Authentication Bypass Vulnerability

Assigner: zdi
Reserved: 09.03.2026 Published: 13.03.2026 Updated: 13.03.2026

Unraid Authentication Request Path Traversal Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Unraid. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the auth-request.php file. The issue results from the lack of proper validation of a user-supplied path prior to using it in authentications. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28912.

Metrics

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS Score: 7.3

Product Status

Vendor Unraid
Product Unraid
Versions Default: unknown
  • Version 7.2.3 is affected

References

Problem Types

  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE