CVE-2023-3907 - CVE House
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Status published Medium CVE-2023-3907

Improper User Management in GitLab

Vulnerability Description

A privilege escalation vulnerability in GitLab EE affecting all versions from 16.0 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows a project Maintainer to use a Project Access Token to escalate their role to Owner

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

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

References

More from GitLab

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CVE-2025-9642
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CVE-2025-9484
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Medium 4.3

Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
16.0, 16.5, 16.6

Timeline

Official Publish: December 17th, 2023
Last Modified: May 31st, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

CWE-286

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.