CVE-2022-31030

CVE-2022-31030 affects containerd’s CRI ExecSync path, where containered processes can cause unbounded memory growth in the containerd daemon, risking host memory exhaustion and denial of service. The connected documents confirm the root cause is within containerd’s CRI implementation and state f...

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-2020-15257

The CVE describes a privilege-escalation issue in containerd where access controls on the shim API socket allowed a container in the same network namespace to run new processes with elevated privileges. Affected releases are containerd before 1.3.9 and before 1.4.3; the vulnerability stems from e...

CVE-2021-32760

CVE-2021-32760 affects containerd prior to 1.4.8 and 1.5.4. A crafted container image could cause Unix file permission changes on host files when pulling/extracting, potentially denying access, widening permissions, or setting bits like setuid/setgid/sticky. The flaw does not directly unlock read...

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-2023-25153

Summary: CVE-2023-25153 affects containerd and, when importing OCI images, could allow a denial of service due to an unlimited bytes-read limit on certain files. The issue exists in versions prior to 1.6.18 and 1.5.18. Root cause: missing input size limit during image import leads to potential Do...

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-2022-23471

CVE-2022-23471 affects containerd’s CRI implementation where a terminal resize handling goroutine in the CRI stream server can leak memory if a child fails to launch. Affected component: containerd (CRIs/stream server). Root cause: goroutine waiting to send on a channel with no receiver, enabling...

CVE-2021-21334

CVE-2021-21334 affects containerd’s CRI plugin: when multiple containers/pods are launched from the same image, containers may receive incorrect environment variables shared across them, potentially exposing sensitive data. The issue is fixed in containerd versions 1.3.10 and 1.4.4; affected envi...

CVE-2020-15157

The CVE-2020-15157 issue affects containerd (pre-1.2.14) where the default resolver would leak credentials when a container image manifest points to a foreign layer. If a manifest directs a layer URL to a attacker‑controlled web server and the image is pulled, credentials used for the registry co...

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-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-2021-43816

CVE-2021-43816 affects containerd (CRI) on SELinux-enabled distros (EL8/CentOS/RHEL, Fedora, SUSE MicroOS). An unprivileged pod could bind-mount a privileged host file via hostPath at /etc/hosts, /etc/hostname, or /etc/resolv.conf, relabeling that path to the container process label and potential...

CVE-2025-47290

CVE-2025-47290 affects containerd v2.1.0, where a TOCTOU flaw during image unpack could allow an attacker to arbitrarily modify the host filesystem. The issue is limited to 2.1.0; 2.1.1 fixes it. Affected guidance: upgrade to containerd 2.1.1+; as a workaround, use only trusted images and restric...

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...

CVE-2025-64329

CVE-2025-64329 affects containerd across multiple streams. The CVE stems from a bug in the CRI Attach implementation that can exhaust host memory due to goroutine leaks in vulnerable releases (versions: 1.7.28 and earlier; 2.0.0-beta.0–2.0.6; 2.1.0-beta.0–2.1.4; 2.2.0-beta.0–2.2.0-rc.1). Affected...