Authorization bypass through user-controlled key in GitLab Enterprise Edition - CVE-2025-8770

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Main Vulnerability Database Vulnerabilities #VU114069

Authorization bypass through user-controlled key in GitLab Enterprise Edition - CVE-2025-8770

Published: August 14, 2025


Vulnerability identifier: #VU114069
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-8770
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
GitLab Enterprise Edition

Detailed vulnerability description

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


How to mitigate CVE-2025-8770

Install updates from vendor's website.

Sources