CVE-2026-30892: fallo en containers crun
Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 0epss 0.2%
crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
Productos afectados
containers · crunCVEs relacionadas — containers crun
En el mismo producto, de las más peligrosas a las menos.
CVE-2025-24965HIGH.krun_config.json symlink attack creates or overwrites file on the host in crunEPSS 0.6%CVE-2026-47766MEDIUMcrun follows rootfs /dev symlink while creating default devicesEPSS 0.2%CVE-2026-88264MEDIUMCrun: crun: /dev/console symlink follow allows root-owned file creation outside the rootfsEPSS 0.1%