CVE-2026-16275

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.4 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to read confidential notes on public projects due to incorrect authorization checks.

Affected

GitLab

CVSS v3.1 GITLAB

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

EPSS

0.26% chance of exploitation in the next 30 days, 17th percentile

Published

2026-10-13

Updated

2026-10-14

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3815259

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released
• https://gitlab.com/gitlab-org/gitlab/-/work_items/606490

References

• CVE Record
• NVD entry