Denial of Service Issue in GitLab CE/EE Affecting Multiple Versions
CVE-2025-3525

6.5MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
25 February 2026

What is CVE-2025-3525?

An issue has been identified in GitLab CE/EE that allows an authenticated user with specific access to potentially launch a Denial of Service attack. This can occur through the creation of specially crafted Continuous Integration (CI) triggers via the API. Affected versions span from GitLab CE/EE 9.0 up to 18.9.0, and users are encouraged to update to the latest versions to avoid potential exploitation.

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Deploy the Patch

Affected Version(s)

GitLab 9.0 < 18.7.5

GitLab 18.8 < 18.8.5

GitLab 18.9 < 18.9.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/535662
issue-trackingpermissions-required
https://hackerone.com/reports/3045257
technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/02/25/patch-releas...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
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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