ZDI-CAN-28951: ZDI-26-171: 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.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unraid. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-3838.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-28951?
The severity of ZDI-CAN-28951 is high with a score of 8.8.
How do I fix ZDI-CAN-28951?
To fix ZDI-CAN-28951, update your Unraid installations to the latest patched version that addresses this vulnerability.
What type of attacks can occur due to ZDI-CAN-28951?
ZDI-CAN-28951 allows remote attackers to execute arbitrary code on affected installations of Unraid.
Is authentication required to exploit ZDI-CAN-28951?
Yes, authentication is required to exploit the ZDI-CAN-28951 vulnerability.
Which file is vulnerable in ZDI-CAN-28951?
The specific flaw in ZDI-CAN-28951 exists within the update.php file of Unraid.