Exposed dangerous method or function in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-5173
Published: April 9, 2026
Vulnerability identifier: #VU125544
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-5173
CWE-ID: CWE-749
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 the exposure of a dangerous function in websocket connections. A remote user can invoke unintended server-side methods.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-5173
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 18.8.9, 18.9.5, 18.10.3
Gitlab Community Edition - addressed in versions 18.8.9, 18.9.5, 18.10.3
Gitlab Community Edition - addressed in versions 18.8.9, 18.9.5, 18.10.3