Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause Denial of Service by sending specially crafted requests to the Jira events endpoint.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 14.4.0, < 18.7.5 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-releaseRelease NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/588206Broken Link
- https://hackerone.com/reports/3519694Permissions Required
FAQ
What is CVE-2026-1662?
CVE-2026-1662 is a vulnerability with a CVSS score of 7.5 (HIGH). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause Denia...
How severe is CVE-2026-1662?
CVE-2026-1662 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1662?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.