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Vulnerabilities

Vulnerability · CVE-2026-3839

Unraid Authentication Request Path Traversal Authentication Bypass Vulnerability.

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · Unraid Authentication Request Path

Check if you run it

No confirmed exploitation is on record for CVE-2026-3839. EPSS is 0.88%. Act only if a listed version of Unraid Authentication Request Path is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Unraid Authentication Request Path).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.88%
Remediation
Advisory link
Affected products
cpe unraid/unraid

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe unraid/unraid7.2.3

How to fix CVE-2026-3839

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3839. EPSS is 0.88%. Act only if a listed version of Unraid Authentication Request Path is installed.

Which versions are affected?

Compare what you have installed with 7.2.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.88%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2026 · NIST NVD

    Detected

    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

  2. Jun 17, 2026 · NIST NVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2026-3839

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3839

    30-day exploitation probability 0.9%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3839

    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 withi

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.