Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 11.10.0, < 18.9.7 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-releasRelease Notes
- https://gitlab.com/gitlab-org/gitlab/-/work_items/594339Broken Link
- https://hackerone.com/reports/3590487Permissions Required
FAQ
What is CVE-2026-4527?
CVE-2026-4527 is a vulnerability with a CVSS score of 6.5 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create...
How severe is CVE-2026-4527?
CVE-2026-4527 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4527?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.