CVE-2023-3915 Incorrect Execution-Assigned Permissions in GitLab

What is CVE-2023-3915?

CVE-2023-3915 is a medium-severity vulnerability in Gitlab Gitlab, published on 1 Sep 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official 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.

Weakness: CWE-732, CWE-279

Which versions are affected by CVE-2023-3915?

1 open source package ship an affected version, including gitlab. It affects 1 product.

Products include Gitlab Gitlab.

How do I fix CVE-2023-3915?

Upgrade gitlab to a fixed version for your release line: 16.1.5, 16.2.5 or 16.3.1.

Is CVE-2023-3915 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3915 exists.

Other vulnerabilities in Gitlab Gitlab

• CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Exploited Critical 10.0
• CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal Exploited Critical 10.0
• CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control Exploited Critical 10.0
• CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution Exploited Critical 10.0
• CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF) Exploited Medium 6.8

All Gitlab Gitlab vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-gitlab-2023-3915, GHSA-3m8p-28cp-6cg5.