CVE-2026-46680: fallo de gravedad alta en containerd
containerd user ID handling bypass allows runAsNonRoot evasion
Publicada el · Actualizada el
41Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 7.3epss 0.2%
de la publicación al arma0 días
Publicada en NVD1 jul
1ª PoC21 may
probabilidad de explotación
0.2%top 95% de las CVE
explotación observada
noninguna fuente lo reporta
1 exploit(s) público(s)
containerd is an open-source container runtime. In versions prior to 1.7.32, 2.0.9, 2.2.4 and 2.3.1, containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are incorrectly treated as a username, leading to runAsNonRoot evasion. If a crafted image provides an /etc/passwd file mapping this large numeric string to root, the container ultimately runs as root (UID 0). This allows the Kubernetes runAsNonRoot restriction to be bypassed, causing unexpected behavior for environments that require containers to run as a non-root user. This issue has been fixed in versions 1.7.32, 2.0.9, 2.2.4 and 2.3.1.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
containerd · containerdPoCs públicas encontradas — 1
githubgithub.com/r0binak/CVE-2026-46680★ 0⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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