Vulnerability · Published May 14, 2026 · Assigned by GitLab
CVE-2026-2900Missing Authorization in GitLab
Low 2.7
In plain English
A low-severity missing authorization in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)2.7Low
Exploit odds (30 days)0.3%top 81.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
References
- HackerOne Bug Bounty Report #3561092 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/590983
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/