Input validation error in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-1094

 

Input validation error in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-1094

Published: February 11, 2026


Vulnerability identifier: #VU122650
CSH Severity: Medium
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-1094
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper validation in diff parser. A remote user can hide specially crafted file changes from the WebUI.


Affected software

GitLab Enterprise Edition
Gitlab Community Edition

How to mitigate CVE-2026-1094

Install updates from vendor's website.

GitLab Enterprise Edition - update to 18.8.4
Gitlab Community Edition - update to 18.8.4

External References

Related Security Bulletins