Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to bypass IP-based access restrictions and read limited merge request information from a private project due to missing authorization checks in a merge requests API endpoint.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 12.0.0, < 19.0.6 |
Related Weaknesses (CWE)
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/Release Notes
- https://gitlab.com/gitlab-org/gitlab/-/work_items/597702Broken Link
- https://hackerone.com/reports/3674254Permissions Required
FAQ
What is CVE-2026-6821?
CVE-2026-6821 is a vulnerability with a CVSS score of 4.3 (MEDIUM). GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated...
How severe is CVE-2026-6821?
CVE-2026-6821 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-6821?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.