CVE-2026-9772 PUBLISHED

Unraid Web Server FileUpload Command Injection Remote Code Execution Vulnerability

Assigner: zdi
Reserved: 27.05.2026 Published: 24.06.2026 Updated: 25.06.2026

Unraid Web Server FileUpload Command Injection 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 FileUpload.php. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user. Was ZDI-CAN-30116.

Metrics

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Product Status

Vendor Unraid
Product Unraid
Versions Default: unknown
  • Version 1161ec120 is affected

References

Problem Types

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE