Denial of Service Vulnerability in GitLab CE/EE Products
CVE-2023-6386

6.5MEDIUM

Key Information:

Vendor
Gitlab
Status
Gitlab
Vendor
CVE Published:
5 February 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A denial of service vulnerability exists in GitLab CE/EE that impacts several versions, allowing attackers to significantly increase resource usage on the GitLab instance. This spike can lead to service degradation, affecting accessibility and reliability. Administrators are encouraged to review their systems and apply necessary updates to mitigate this risk.

Affected Version(s)

GitLab 15.11 < 16.6.7

GitLab 16.7 < 16.7.5

GitLab 16.8 < 16.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-6386 - Proof of Concept

References

https://gitlab.com/gitlab-org/gitlab/-/issues/433147
issue-trackingpermissions-required
https://hackerone.com/reports/2261581
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

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks `Anonymizer` for reporting this vulnerability through our HackerOne bug bounty program
.