Denial of Service Vulnerability in GitLab CE/EE Products
CVE-2025-11447

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
27 October 2025

What is CVE-2025-11447?

A vulnerability has been identified in GitLab CE/EE that allows unauthenticated attackers to potentially trigger a denial of service condition. This can be achieved by sending GraphQL requests with specially crafted JSON payloads, impacting all versions prior to specified patch releases. The remediation process has been implemented to mitigate these risks, providing users with enhanced security against such threats.

Affected Version(s)

GitLab 11.0 < 18.3.5

GitLab 18.4 < 18.4.3

GitLab 18.5 < 18.5.1

References

https://about.gitlab.com/releases/2025/10/22/patch-releas...
https://gitlab.com/gitlab-org/gitlab/-/issues/574858
issue-trackingpermissions-required
https://hackerone.com/reports/3367019
technical-descriptionexploitpermissions-required

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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