GHSA-cxfp-7pvr-95ff

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Source
https://github.com/advisories/GHSA-cxfp-7pvr-95ff
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-cxfp-7pvr-95ff/GHSA-cxfp-7pvr-95ff.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-cxfp-7pvr-95ff
Aliases
Related
Published
2025-05-21T18:01:48Z
Modified
2025-05-28T19:45:21Z
Downstream
Severity
  • 4.6 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator
Summary
containerd CRI plugin: Incorrect cgroup hierarchy assignment for containers running in usernamespaced Kubernetes pods.
Details

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.

For more information

If you have any questions or comments about this advisory:

  • Open an issue in containerd
  • Email us at security@containerd.io

To report a security issue in containerd: * Report a new vulnerability * Email us at security@containerd.io

Database specific
{
    "nvd_published_at": "2025-05-21T18:15:52Z",
    "cwe_ids": [
        "CWE-266"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-05-21T18:01:48Z"
}
References

Affected packages

Go / github.com/containerd/containerd/v2

Package

Name
github.com/containerd/containerd/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/containerd/containerd/v2

Affected ranges

Type
SEMVER
Events
Introduced
2.0.1
Fixed
2.0.5

Database specific

{
    "last_known_affected_version_range": "<= 2.0.4"
}