Vulnerability in GitLab
CVE-2026-12436
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.
Vulnerability class: Mass Assignment
EPSS: 0.003 (23.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L.
Affected products
- Gitlab — versions 19.2, 19.1, 18.0
Weakness classification (CWE)
References
- cve@gitlab.com (Broken Link)
- cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
- cve@gitlab.com (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-12436?
- CVE-2026-12436 is a high-severity vulnerability in GitLab, classified under Improperly Controlled Modification of Dynamically-Determined Object Attributes. CVSS score: 8.4/10. Published 2026-07-29.
- How severe is CVE-2026-12436?
- High severity. CVSS v3 base score is 8.4 out of 10.