Time-of-check Time-of-use (TOCTOU) Race Condition in GitLab
CVE-2024-9183

7.7HIGH

Key Information:

Vendor

Gitlab

Status
Vendor
CVE Published:
5 December 2025

What is CVE-2024-9183?

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 prior to 18.4.5, 18.5 prior to 18.5.3, and 18.6 prior to 18.6.1 that could have allowed an authenticated user to obtain credentials from higher-privileged users and perform actions in their context under specific conditions.

Affected Version(s)

GitLab 18.4 < 18.4.5

GitLab 18.5 < 18.5.3

GitLab 18.6 < 18.6.1

References

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [aphantom](https://hackerone.com/aphantom) for reporting this vulnerability through our HackerOne bug bounty program
.
CVE-2024-9183 : Authentication Bypass in GitLab CE/EE by User Manipulation