CVE-2026-3553

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to incorrect authorization checks.

Affected

GitLab

CVSS v3.1 GITLAB

3.1 LOWCVSS:3.1/AV:N/AC:H/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

2026-06-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3578216

Security advisories

• https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released
• https://gitlab.com/gitlab-org/gitlab/-/work_items/592295

References

• CVE Record
• NVD entry