CVE-2026-8937

Missing Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to read private child issue contents, including titles and descriptions, from projects they had no access to, due to missing authorization checks on linked work items within visible epics.

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

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

Published

2026-09-29

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3702369

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released

References

• CVE Record
• NVD entry