Denial of Service Vulnerability in GitLab CE/EE
CVE-2025-7449

6.5MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
26 November 2025

What is CVE-2025-7449?

An issue has been identified in GitLab CE/EE that allows an authenticated user with specific permissions to create a denial of service condition via improper HTTP response processing. This vulnerability affects multiple versions, posing risks to system availability and reliability. Organizations using affected versions of GitLab should prioritize remediation to prevent potential exploitation.

Affected Version(s)

GitLab 8.3 < 18.4.5

GitLab 18.5 < 18.5.3

GitLab 18.6 < 18.6.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/554938
issue-trackingpermissions-required
https://hackerone.com/reports/3215054
technical-descriptionexploitpermissions-required

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