CVE-2023-25173

CVE-2023-25173 affects containerd. A bug allowed improper setup of supplementary groups inside a container, enabling bypass of primary group restrictions and potential access to sensitive data or code execution when an attacker has container access. The issue is fixed in containerd 1.6.18 and 1.5...

CVE-2022-23648

CVE-2022-23648 affects containerd’s CRI implementation on Linux where specially-crafted image configurations could allow reading read-only copies of arbitrary host files and directories, potentially bypassing policy enforcement. The issue was fixed in containerd 1.6.1, 1.5.10, and 1.4.12. Users s...

CVE-2021-41103

CVE-2021-41103 affects containerd and stems from insufficiently restricted permissions on container root directories and some plugins, enabling unprivileged host users to traverse directories, read/modify files, and potentially execute programs (including those with extended permission bits). The...

CVE-2024-40635

CVE-2024-40635 affects containerd. A bug allows containers launched with a UID:GID that exceeds the 32‑bit signed integer max to overflow, causing the container to run as root (UID 0). Fixed in containerd releases: 1.6.38, 1.7.27, and 2.0.4. Workarounds include using only trusted images and restr...

CVE-2026-46680

CVE-2026-46680 concerns containerd, the container runtime. A flaw in how numeric User directives are parsed (not a 32-bit integer) can cause such values to be treated as usernames, enabling runAsNonRoot evasion. If a crafted image supplies an /etc/passwd mapping that maps this large numeric strin...

CVE-2025-47291

CVE-2025-47291 concerns containerd’s CRI: versions 2.0.1–2.0.4 do not place usernamespaced containers under the Kubernetes cgroup hierarchy, which may cause Kubernetes limits to not be honored and could lead to node denial of service. The issue is fixed in containerd 2.0.5+ and 2.1.0+. Remediatio...

CVE-2024-25621

CVE-2024-25621 affects containerd: versions 0.1.0–1.7.28, 2.0.0-beta.0–2.0.6, 2.1.0-beta.0–2.1.4, and 2.2.0-beta.0–2.2.0-rc.1 create directories with overly broad permissions (e.g., /var/lib/containerd, /run/containerd/io.containerd.grpc.v1.cri, /run/containerd/io.containerd.sandbox.controller.v1...