Allocation of Resources Without Limits or Throttling in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-15975
Published: July 29, 2026 / Updated: July 30, 2026
Vulnerability identifier: #VU140477
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-15975
CWE-ID: CWE-770
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 insufficient resource throttling in merge request discussions when processing merge request discussions. A remote attacker can send requests to cause a denial of service.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-15975
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