CVE-2026-3839 HIGH

CVE-2026-3839: Unraid Authentication Request Path Traversal Authentication Bypass Vulnerability

Vendor Unraid
Product Unraid
Weakness CWE-22 · Path traversal
Published March 13, 2026
Last update March 16, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 13, 2026 CVE published
March 16, 2026 Record updated