CVE-2026-3839

High

Description

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.

SeverityHigh
CVSS7.3
Exploit probability—
ProductUnraid
PublishedMar 16, 2026
First seenMar 16, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
unraid unraid7.2.3—

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CVE-2026-3839 · Unraid · Dark Radar