CVE-2026-6269

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to modify hidden merge requests due to incorrect authorization enforcements.

CVSS Vector

References

• https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/
• https://gitlab.com/gitlab-org/gitlab/-/work_items/596625
• https://hackerone.com/reports/3661880