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CVE-2025-47291

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

Published: May 21, 2025Updated: Sep 19, 2025 Sources: CVE List NVD GHSACWE-266
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.2%
Top 85.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-266

Affected Products

containerdcontainerd
On-prem
Cloud & SaaS / container-orchestration
github.com/containerd/containerd/v2GoOSS Libraries
containerdlinuxfoundation
LibraryLibrary
AI / ML
containerdoss-projectCloud & SaaSaka containerd, imgcrypt
gopackage-ecosystemOSS Libraries
linuxfoundationoss-projectUSAI / MLaka yocto, pytorch, everest

Exploitability

Official Patch Available

References

https://github.com/containerd/containerd/security/advisories/GHSA-cxfp-7pvr-95ff
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-47291
nvd.nist.gov
https://github.com/containerd/containerd
github.com
and 1 more references View all →

Timeline

Published
May 21, 2025
Last Updated
Sep 19, 2025

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