Auth bypass in Gitlab
CVE-2025-9957
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.2 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user with project owner permiss…
Vulnerability class: Broken Access Control
EPSS: 0.000 (4.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Gitlab — versions 11.2, 18.10, 18.11
Weakness classification (CWE)
References
- HackerOne Bug Bounty Report #3275222 (technical-description, exploit, permissions-required)
- gitlab.com/gitlab-org/gitlab/-/work_items/567781
- about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/
Frequently asked questions
- What is CVE-2025-9957?
- CVE-2025-9957 is a low-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 2.7/10. Published 2026-04-22.
- How severe is CVE-2025-9957?
- Low severity. CVSS v3 base score is 2.7 out of 10.