Denial of Service Vulnerability in GitLab CE/EE
CVE-2025-1477

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
13 August 2025

What is CVE-2025-1477?

A vulnerability has been identified in the GitLab Community Edition (CE) and Enterprise Edition (EE) that allows unauthenticated users to potentially create a denial of service (DoS) condition. This occurs by sending specially crafted payloads to specific integration API endpoints. The affected versions include all releases from 8.14 ahead of 18.0.6, 18.1 ahead of 18.1.4, and 18.2 ahead of 18.2.2. It is critical for users and administrators to address this issue swiftly to ensure the security and stability of their GitLab instances.

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Affected Version(s)

GitLab 8.14 < 18.0.6

GitLab 18.1 < 18.1.4

GitLab 18.2 < 18.2.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/520353
issue-trackingpermissions-required
https://hackerone.com/reports/2987614
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 [pwnie](https://hackerone.com/pwnie) for reporting this vulnerability through our HackerOne bug bounty program
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