Denial of Service Vulnerability in GitLab Community Edition and Enterprise Edition
CVE-2025-10858

7.5HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
26 September 2025

What is CVE-2025-10858?

A vulnerability in GitLab Community Edition and Enterprise Edition allows unauthenticated users to trigger a Denial of Service (DoS) condition. This is achieved by uploading specially crafted, large JSON files. All versions before 18.2.7, 18.3 prior to 18.3.3, and 18.4 prior to 18.4.1 are affected. This vulnerability poses a significant risk as it can lead to service unavailability.

Affected Version(s)

GitLab 0 < 18.2.7

GitLab 18.3 < 18.3.3

GitLab 18.4 < 18.4.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/570034
issue-trackingpermissions-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

JSON
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CVE-2025-10858 : Denial of Service Vulnerability in GitLab Community Edition and Enterprise Edition