CVE-2026-0602

Authentication Bypass Using an Alternate Path or Channel in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to disclose metadata from private issues, merge requests, epics, milestones, or commits due to improper filtering in the snippet rendering process under certain circumstances.

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

0.25% chance of exploitation in the next 30 days, 16th percentile

Published

2026-03-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3486504

Security advisories

• https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released

References

• CVE Record
• NVD entry