CVE-2025-47291

Description

# Impact A bug was found in the containerd's CRI implementation where containerd 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. # Patches This bug has been fixed in containerd 2.0.5+ and 2.1.0+. Users should update to these versions to resolve the issue. # Workarounds Disable usernamespaced pods in Kubernetes temporarily. # Credits The containerd project would like to thank Rodrigo Campos Catelin and Piotr Rogowski for responsibly disclosing this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md). # For more information If you have any questions or comments about this advisory: * Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose) * Email us at [email protected] To report a security issue in containerd: * [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new) * Email us at [[email protected]](mailto:[email protected])

Affected packages (2)

• Go/github.com/containerd/containerd/v2>= 2.0.1, < 2.0.5
• Go/github.com/containerd/containerd/v2>= 2.0.1, < 2.0.5

CVSS scores

References (4)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-47291
• PATCHhttps://github.com/containerd/containerd
• WEBhttps://github.com/containerd/containerd/security/advisories/GHSA-cxfp-7pvr-95ff
• WEBhttps://pkg.go.dev/vuln/GO-2025-3701