High severity8.5NVD Advisory· Published Aug 12, 2026· Updated Aug 19, 2026
CVE-2026-15423
CVE-2026-15423
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*+ 2 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=19.0.0,<19.0.6
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=19.0.0,<19.0.6
- (no CPE)range: 19.0 < 19.0.6, 19.1 < 19.1.4, 19.2 < 19.2.2
- Range: 19.0 < 19.0.6, 19.1 < 19.1.4, 19.2 < 19.2.2
Patches
Vulnerability mechanics
References
2- docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/nvdRelease Notes
- hackerone.com/reports/3832069nvdPermissions Required
News mentions
3- GitLab 19.2.2 Patches 13 Security Flaws, Including High-Severity XSS and CI/CD Authorization FlawsCyber Security News · Aug 13, 2026
- GitLab: Nine Vulnerabilities Including XSS and Auth Bypass Patched in Coordinated August 12 ReleaseVypr Intelligence · Aug 12, 2026
- GitLab Patch Release: 19.2.2, 19.1.4, 19.0.6GitLab Security Releases · Aug 12, 2026