Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 17.10.0, < 18.8.7 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-releasRelease NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/592828Broken Link
- https://hackerone.com/reports/3584382Permissions Required
FAQ
What is CVE-2026-3857?
CVE-2026-3857 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...
How severe is CVE-2026-3857?
CVE-2026-3857 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3857?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.