CVE-2026-12436
Last modified
CVE-2026-12436 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.0.0, < 19.0.5 |
| Gitlab | Gitlab | >= 19.1.0, < 19.1.3 |
| Gitlab | Gitlab | 19.2.0 |
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/Release Notes, Vendor Advisory
- https://hackerone.com/reports/3800511Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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