CSRF in Gitlab
CVE-2026-3857
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf o…
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.000 (2.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Gitlab — versions 17.10, 18.9, 18.10
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/work_items/592828
- HackerOne Bug Bounty Report #3584382 (technical-description, exploit, permissions-required)
- about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
Frequently asked questions
- What is CVE-2026-3857?
- CVE-2026-3857 is a high-severity vulnerability in Gitlab, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.1/10. Published 2026-03-25.
- How severe is CVE-2026-3857?
- High severity. CVSS v3 base score is 8.1 out of 10.