Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 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 with developer-role permissions to execute CI/CD pipelines on a protected branch without the required push permissions due to improper authorization in pipeline reference validation.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 19.0.0, < 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/605705Broken Link
- https://hackerone.com/reports/3832069Permissions Required
FAQ
What is CVE-2026-15423?
CVE-2026-15423 is a vulnerability with a CVSS score of 8.5 (HIGH). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 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 authentica...
How severe is CVE-2026-15423?
CVE-2026-15423 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15423?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.