Input validation error in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-7427
Published: August 13, 2026
Vulnerability identifier: #VU142368
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-7427
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in GraphQL API JSON parser when parsing input. A remote attacker can send a specially crafted request to cause a denial of service.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-7427
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2
Gitlab Community Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2
Gitlab Community Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2