Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an authenticated user with a read_api-scoped token to retrieve a project's incoming email address and create work items, bypassing the token's restrictions, due to insufficient scope enforcement on a GraphQL field.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.2.0, < 19.3.6 |
Related Weaknesses (CWE)
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/Release NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/603510Permissions Required
- https://hackerone.com/reports/3735499Permissions Required
FAQ
What is CVE-2026-12664?
CVE-2026-12664 is a vulnerability with a CVSS score of 6.8 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an authenti...
How severe is CVE-2026-12664?
CVE-2026-12664 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12664?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.