Input validation error in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-12436
Published: July 29, 2026 / Updated: July 30, 2026
Vulnerability identifier: #VU140476
CSH Severity: Medium
CVSS v4: 7.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-12436
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify CI/CD configuration belonging to another user.
The vulnerability exists due to improper input validation in the Pipeline Schedule API when processing pipeline schedule inputs. A remote user can supply crafted attributes to modify CI/CD configuration belonging to another user.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-12436
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.0.5, 19.1.3, 19.2.1
Gitlab Community Edition - addressed in versions 19.0.5, 19.1.3, 19.2.1
Gitlab Community Edition - addressed in versions 19.0.5, 19.1.3, 19.2.1