CVE-2023-3915 - CVE House
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Status published Medium CVE-2023-3915

Incorrect Execution-Assigned Permissions in GitLab

Vulnerability Description

An issue has been discovered in GitLab EE affecting all versions starting from 16.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. If an external user is given an owner role on any group, that external user may escalate their privileges on the instance by creating a service account in that group. This service account is not classified as external and may be used to access internal projects.

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

References

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CVE-2025-9642
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CVE-2025-9484
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Affected Vendor

Affected Software

GitLab
Vulnerable Versions:
16.1, 16.2, 16.3

Timeline

Official Publish: September 1st, 2023
Last Modified: May 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

CWE-279

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.