CVE-2026-3074

Authorization Bypass Through User-Controlled Key in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to download private debugging symbols from inaccessible projects due to improper access control.

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

0.34% chance of exploitation in the next 30 days, 26th percentile

Published

2026-05-14

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3556163

Security advisories

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

References

• CVE Record
• NVD entry