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.
Use CWE-22, Unraid vendor hub and Unraid product page to widen CVE-2026-3838 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2020-5847, CVE-2020-5849 and CVE-2026-3839 for nearby disclosures in the same product family.