CVE-2023-2478 Missing authorization in GitLab

What is CVE-2023-2478?

CVE-2023-2478 is a critical missing authorization vulnerability in Gitlab Gitlab, published on 8 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 15.4 before 15.9.7, all versions starting from 15.10 before 15.10.6, all versions starting from 15.11 before 15.11.2. Under certain conditions, a malicious unauthorized GitLab user may use a GraphQL endpoint to attach a malicious runner to any project.

Weakness: CWE-732

Which versions are affected by CVE-2023-2478?

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

Products include Gitlab Gitlab.

How do I fix CVE-2023-2478?

Upgrade gitlab to a fixed version for your release line: 15.9.7, 15.10.6 or 15.11.2.

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

Is CVE-2023-2478 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2478 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-2023-2478, GHSA-7h3w-v9hh-hp55, UBUNTU-CVE-2023-2478.