CVE-2026-6269

5.4 mediumEPSS 0.2%

Medium (5.4) in gitlab gitlab. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2026-06-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gitlab:gitlab

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

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