p PatchFirst

CVE-2025-47291

CVE-2025-47291 · containerd CRI plugin: Incorrect cgroup hierarchy assignment for containers running in usernamespaced Kubernetes pods.

This page contains facts from public vulnerability sources. Check the original advisory before updating.

containerd is an open-source container runtime. A bug was found in the containerd's CRI implementation where containerd, starting in version 2.0.1 and prior to version 2.0.5, doesn't put usernamespaced containers under the Kubernetes' cgroup hierarchy, therefore some Kubernetes limits are not honored. This may cause a denial of service of the Kubernetes node. This bug has been fixed in containerd 2.0.5+ and 2.1.0+. Users should update to these versions to resolve the issue. As a workaround, disable usernamespaced pods in Kubernetes temporarily.

CVSS 4.6 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system · containers

Affected products and versions

  • containerd

    Versions
    • >= 2.0.1, < 2.0.5: Affected

    No fix published

  • containerd-app Ubuntu:25.10

    Versions
    • 2.0.2-0ubuntu2
    Affected ranges
    • ECOSYSTEM: < 2.0.5-0ubuntu1

    Update to 2.0.5-0ubuntu1

Original sources

Check your server →