GitLab EE Auth Bypass: Approval Rules (16.1018.9.6, 18.1018.10.5, 18.1118.11.2)
CVE-2026-2900 Published on May 14, 2026
Missing Authorization in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 16.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that when instance-level approval rule editing prevention was enabled, could have allowed an authenticated user with Maintainer permissions to modify or delete project approval rules due to missing authorization checks.
Vulnerability Analysis
CVE-2026-2900 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-2900 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-2900
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Affected Versions
GitLab:- Version 16.10 and below 18.9.7 is affected.
- Version 18.10 and below 18.10.6 is affected.
- Version 18.11 and below 18.11.3 is affected.