Denial of Service Vulnerability in GitLab CE/EE
CVE-2025-14871

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
16 September 2026

What is CVE-2025-14871?

A denial of service vulnerability exists in GitLab CE/EE that impacts multiple versions prior to specified updates. Under specific conditions, an unauthenticated user can exploit improper resource allocation limits within the GraphQL complexity calculation logic, potentially leading to service disruptions. This vulnerability necessitates prompt patching to ensure system availability and integrity.

Affected Version(s)

GitLab 18.4.6 < 19.1.8

GitLab 19.2 < 19.2.6

GitLab 19.3 < 19.3.2

References

https://hackerone.com/reports/3462311
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/584492
https://docs.gitlab.com/releases/patches/patch-release-gi...

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 [hunter0xp7](https://hackerone.com/hunter0xp7) for reporting this vulnerability through our HackerOne bug bounty program
.