Vulnerability · Published Jun 24, 2026 · Assigned by zdi

CVE-2026-9772Unraid Web Server FileUpload Command Injection Remote Code Execution Vulnerability

High 8.8

In plain English

A high-severity OS command injection in Unraid from Unraid. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)1.9%top 20.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Unraid	Unraid	1161ec120

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ZDI-26-385 x_research-advisory