CVE-2023-6955 Missing Authorization in GitLab

What is CVE-2023-6955?

CVE-2023-6955 is a medium-severity missing authorization vulnerability in Gitlab Gitlab, published on 12 Jan 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A missing authorization check vulnerability exists in GitLab Remote Development affecting all versions prior to 16.5.6, 16.6 prior to 16.6.4 and 16.7 prior to 16.7.2. This condition allows an attacker to create a workspace in one group that is associated with an agent from another group.

Weakness: CWE-862

Which versions are affected by CVE-2023-6955?

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

Products include Gitlab Gitlab.

How do I fix CVE-2023-6955?

Upgrade gitlab to a fixed version for your release line: 16.5.6, 16.6.4 or 16.7.2.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-6955 being exploited?

There is no known exploitation of CVE-2023-6955 in the wild and no public exploit code.

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-2023-6955, GHSA-2w7q-mj4w-9cm2, UBUNTU-CVE-2023-6955.