CVE-2025-13874

Authorization Bypass Through User-Controlled Key in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with Guest permissions to view issues in projects they were not authorized to access.

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

0.23% chance of exploitation in the next 30 days, 13th percentile

Published

2026-05-14

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3445398

Security advisories

• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released

References

• CVE Record
• NVD entry