CVE-2026-10518

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab EE affecting all versions from 17.9 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user with guest-level permissions to read private security policy content they were not authorized to access due to improper authorization enforcement.

Affected

GitLab

CVSS v3.1 GITLAB

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

EPSS

0.33% chance of exploitation in the next 30 days, 25th percentile

Published

2026-09-29

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3686230

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released

References

• CVE Record
• NVD entry