Bug 2367852 (CVE-2025-47291) - CVE-2025-47291 containerd: containerd CRI plugin: Incorrect cgroup hierarchy assignment for containers running in usernamespaced Kubernetes pods.
Summary: CVE-2025-47291 containerd: containerd CRI plugin: Incorrect cgroup hierarchy ...
Keywords:
Status: NEW
Alias: CVE-2025-47291
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-21 18:02 UTC by OSIDB Bzimport
Modified: 2025-05-21 19:26 UTC (History)
70 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-05-21 18:02:07 UTC 
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.
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