Is CVE-2026-3839 actively exploited?

No active exploitation of CVE-2026-3839 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3839 be exploited remotely?

Yes. CVE-2026-3839 is exploitable remotely over the network (CVSS attack vector: Network).

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

CVE-2026-3839 has a CVSS score of 7.3 (HIGH).

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HIGH

CVE-2026-3839

CWE-22Published: March 16, 2026· Updated: Mar 17, 2026

7.3

CVSS v3.1

EPSS:0.25%probability of exploitation in 30 daysPercentile:48.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3839 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.