Vulnerability · Published Mar 25, 2026 · Assigned by GitLab
CVE-2026-3857Cross-Site Request Forgery (CSRF) in GitLab
High 8.1
In plain English
A high-severity cross-site request forgery 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 0.2% (higher than 12% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.2%top 88.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 of authenticated users due to insufficient CSRF protection.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592828
- HackerOne Bug Bounty Report #3584382 technical-description, exploit, permissions-required
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/