Authorization bypass through user-controlled key in GitLab Enterprise Edition - CVE-2025-8770
Published: August 14, 2025
Vulnerability identifier: #VU114069
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-8770
CWE-ID: CWE-639
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 authorization bypass through user-controlled key in Merge request approval policy. A remote user can manipulate approval rule identifiers and bypass merge request approval policies
Affected software
GitLab Enterprise Edition
How to mitigate CVE-2025-8770
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 18.0.6, 18.1.4, 18.2.2