CVE-2023-3907

MEDIUM 4.9

Improper User Management in GitLab

CVSS Score

4.9

EPSS Score

0.0%

EPSS Percentile

7th

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

CWE	CWE-286
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Dec 17, 2023
Last Updated	Apr 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Affected Versions

GitLab / GitLab

16.0 < 16.4.4 16.5 < 16.5.4 16.6 < 16.6.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/issues/418878 hackerone.com: https://hackerone.com/reports/2058934

Credits

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