CVE-2026-5377

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.

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

0.39% chance of exploitation in the next 30 days, 32nd percentile

Published

2026-04-22

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3640688

Security advisories

• https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released

References

• CVE Record
• NVD entry