CVE-2026-16301

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 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 authenticated user with Developer role to execute CI/CD pipelines on protected branches without authorization due to improper authorization checks in the downstream pipeline creation service.

Affected

GitLab

CVSS v3.1 GITLAB

8.5 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N

EPSS

0.22% chance of exploitation in the next 30 days, 11th percentile

Published

2026-10-13

Updated

2026-10-14

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3853866

Security advisories

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released
• https://gitlab.com/gitlab-org/gitlab/-/work_items/606501

References

• CVE Record
• NVD entry