critical9.9
CVE-2026-73802
gitea-runner: workflow container.options passes host namespaces and capability flags to job container when privileged mode is disabled
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | gitea.com/gitea/runner | < 1.0.9-0.20260731160927-34bfa1915022 | 1.0.9-0.20260731160927-34bfa1915022 |