Auth bypass in Gitlab
CVE-2026-4916
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user with custom role permissions to demote or remove high…
Vulnerability class: Broken Access Control
EPSS: 0.000 (2.9th 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 18.2, 18.9, 18.10
Weakness classification (CWE)
References
- HackerOne Bug Bounty Report #3301240 (technical-description, exploit, permissions-required)
- gitlab.com/gitlab-org/gitlab/-/work_items/565414
- about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/
Frequently asked questions
- What is CVE-2026-4916?
- CVE-2026-4916 is a low-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 2.7/10. Published 2026-04-08.
- How severe is CVE-2026-4916?
- Low severity. CVSS v3 base score is 2.7 out of 10.