GitLabCVE-2026-15423
GitLab: improper authorization
High8.5CVE-2026-15423 · Published Aug 12, 2026 · updated Aug 19, 2026
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| GitLab Product | >= 19.0, < 19.0.6 | 19.0.6 |
| >= 19.1, < 19.1.4 | 19.1.4 | |
| >= 19.2, < 19.2.2 | 19.2.2 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-863
More GitLab advisories
All GitLab| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 12 | GitLab: missing authorization | Medium4.3 | 19.0.6+2 more |
| Aug 12 | GitLab: missing authorization | Medium4.3 | 19.0.6+2 more |
| Aug 12 | GitLab: improper authorization | High8.5 | 19.1.4+1 more |
| Aug 12 | GitLab: improper authorization | Medium4.3 | 19.1.4+1 more |
| Aug 12 | GitLab: missing authorization | High7.1 | 19.1.4+1 more |
| Aug 12 | GitLab: cross-site scripting | High8.7 | 19.0.6+2 more |