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Servers and applications

CVE-2025-47291

containerd CRI plugin: Incorrect cgroup hierarchy assignment for containers running in usernamespaced Kubernetes pods.

Severity
Medium 4.6
Published
21 May 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.0.5
Also known as
GHSA-cxfp-7pvr-95ff
Sources
NVD, Project advisories (GitHub)

Description

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…

Affected software

SoftwareAffected versions
containerdServers and applications · cpe:a:linuxfoundation:containerd
  • From 2.0.1 before 2.0.5
containerdServers and applications · github:containerd/containerd
  • From 2.0.1 before 2.0.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-47291
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-47291
  • GitHub Advisory Database https://github.com/advisories/GHSA-cxfp-7pvr-95ff
  • github.com https://github.com/containerd/containerd/security/advisories/GHSA-cxfp-7pvr-95ff