CVE-2023-3907

Name: CVE-2023-3907
Creator: NVD / NIST
Published: 2023-12-17T23:15:43.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2023-3907 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.59%

43.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-286

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.0.0, < 16.4.4
Gitlab	Gitlab	>= 16.5, < 16.5.4
Gitlab	Gitlab	>= 16.6, < 16.6.2

References

https://gitlab.com/gitlab-org/gitlab/-/issues/418878Issue Tracking, Vendor Advisory
https://hackerone.com/reports/2058934Permissions Required
https://gitlab.com/gitlab-org/gitlab/-/issues/418878Issue Tracking, Vendor Advisory
https://hackerone.com/reports/2058934Permissions Required

Timeline

Published: Dec 17, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-3907?

How severe is CVE-2023-3907?

CVE-2023-3907 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3907?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3907?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST