Denial of Service Vulnerability in GitLab CE/EE by GitLab
CVE-2025-14513

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
11 March 2026

What is CVE-2025-14513?

A vulnerability exists in GitLab CE/EE that affects versions prior to 18.7.6, 18.8.6, and 18.9.2. This vulnerability allows unauthenticated users to trigger a denial of service condition through improper input validation in the protected branches API when processing specially crafted JSON payloads. GitLab has issued a patch to remediate this issue, emphasizing the importance of updating to the latest versions to safeguard API interactions and prevent service disruptions.

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Affected Version(s)

GitLab 16.11 < 18.7.6

GitLab 18.8 < 18.8.6

GitLab 18.9 < 18.9.2

References

https://hackerone.com/reports/3452477
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/583718
https://about.gitlab.com/releases/2026/03/11/patch-releas...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program
JSON
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