CVE-2026-73802

Gitea Runner passes workflow-controlled container options into Docker job container configuration while privileged mode is disabled. Host namespace settings, expanded capabilities, and security profile overrides can remain effective despite Privileged being forced false. A workflow author able to run jobs on an affected Docker-backed runner can use these options to access host namespaces and execute commands as root on the runner host, bypassing the intended container isolation.

• https://blog.gitea.com/release-of-runner-3.0.0/
• https://gitea.com/gitea/runner/releases/tag/v3.0.0
• https://github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf