Unrated severityNVD Advisory· Published Mar 13, 2026· Updated Mar 16, 2026
Unraid Update Request Path Traversal Remote Code Execution Vulnerability
CVE-2026-3838
Description
Unraid Update Request Path Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unraid. Authentication is required to exploit this vulnerability.
The specific flaw exists within the update.php file. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28951.
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Affected products
2Patches
Vulnerability mechanics
References
1- www.zerodayinitiative.com/advisories/ZDI-26-171/mitrex_research-advisory
News mentions
1- ZDI-26-171: Unraid Update Request Path Traversal Remote Code Execution VulnerabilityZero Day Initiative · Mar 9, 2026