Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-58053

Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-269 Gestión de privilegios incorrecta
Fecha de publicación:
28/06/2026
Última modificación:
30/06/2026

Descripción

*** Pendiente de traducción *** Gitea act_runner with the Docker backend (through act 0.262.0) passes a workflow's container.options string to the Docker job container's HostConfig and, when configured with privileged: false, forces only the Privileged flag off while merging options such as --pid=host, --cap-add, and --security-opt unchanged. A user who can run a workflow on a Docker-backed runner can create a job container with host namespaces and broad capabilities and escape to the host as root despite privileged mode being disabled.