Is CVE-2026-3839 actively exploited?

CVE-2026-3839 has no public evidence of in-the-wild exploitation as of 2026-03-17.

What is the CVSS score for CVE-2026-3839?

CVE-2026-3839 has a CVSS score of 7.3 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

How do I patch CVE-2026-3839?

Patch guidance is available from unraid security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-3839.

Fix CVE-2026-3839 - HIGH unraid unraid

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low
Weaknesses: CWE-22 · Path Traversal

Metadata

Primary Vendor: UNRAID
Published: 3/16/2026
Last Modified: 3/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-3839

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary