CVE-2026-15423

Incorrect Authorization in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute CI/CD pipelines on a protected branch without the required push permissions due to improper authorization in pipeline reference validation.

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

0.40% chance of exploitation in the next 30 days, 33rd percentile

Published

2026-08-12

Updated

2026-08-13

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3832069

Security advisories

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

References

• CVE Record
• NVD entry