Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have allowed an unauthenticated user to execute mutations via GET requests due to improper request validation in GraphQL multiplex query handling.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.2.0, < 18.11.11 |
Related Weaknesses (CWE)
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/Vendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/612617Not Applicable
- https://hackerone.com/reports/3903669Permissions Required
FAQ
What is CVE-2026-19650?
CVE-2026-19650 is a vulnerability with a CVSS score of 7.1 (HIGH). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have...
How severe is CVE-2026-19650?
CVE-2026-19650 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-19650?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.