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Fencer Vulns
high 7.5

CVE-2025-47291 json

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

published 2025-05-21 17 mo ago modified 2026-09-10 1 mo ago also EUVD-2025-16049 , GHSA-cxfp-7pvr-95ff , GO-2025-3701

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/containerd/containerd/v2 2.0.5
  • linuxfoundation containerd 2.0.5
  • containerd-app Ubuntu 25.10 2.0.5-0ubuntu1

ubuntu advisories UBUNTU-CVE-2025-47291

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • trivy openSUSE Tumbleweed 0.65.0-1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250523T151856-1.1

opensuse advisories openSUSE-SU-2025:15454-1openSUSE-SU-2025:15159-1

  • containerd2 Azure Linux 3.0 2.0.0-12

azure linux advisories AZL-62003

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-47291 updated cvss 6.3

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

  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai-tech-preview/assisted-installer-agent-rhel8 Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator, dvo/deployment-validation-operator-bundle Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9 Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9 Red Hat Migration Toolkit for Virtualization migration-toolkit-virtualization/mtv-validation-rhel9 Red Hat Multicluster Engine for Kubernetes multicluster-engine/assisted-installer-rhel8, multicluster-engine/assisted-installer-rhel9, multicluster-engine/assisted-service-8-rhel8, multicluster-engine/assisted-service-9-rhel9, multicluster-engine/assisted-installer-agent-rhel8, multicluster-engine/assisted-installer-agent-rhel9, +2 more
    +14 more products
    Red Hat OpenShift API for Data Protection oadp/oadp-mustgather-rhel9 Red Hat OpenShift Developer Tools and Services openshift4/ose-jenkins, ocp-tools-4/jenkins-rhel8, jenkins-agent-base-container, ocp-tools-4/jenkins-agent-base-rhel8 Red Hat OpenShift Serverless openshift-serverless-1/client-kn-rhel8, openshift-serverless-1/func-utils-rhel8 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/istio-rhel9-operator Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/prometheus-rhel9, rhacm2/multicloud-integrations-rhel9, rhacm2/multicluster-operators-channel-rhel9, rhacm2/multicluster-operators-subscription-rhel9 Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-roxctl-rhel8, advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-central-db-rhel8, advanced-cluster-security/rhacs-scanner-v4-rhel8, advanced-cluster-security/rhacs-scanner-v4-db-rhel8 Red Hat OpenShift AI (RHOAI) rhoai/odh-model-controller-rhel8, rhoai/odh-ml-pipelines-driver-rhel8, rhoai/odh-ml-pipelines-launcher-rhel8, rhoai/odh-ml-pipelines-api-server-v2-rhel8, rhoai/odh-ml-pipelines-persistenceagent-v2-rhel8, rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel8 Red Hat OpenShift Container Platform 4 kata-containers, openshift4/ose-cli, openshift4/ose-tests, openshift4/ose-console, openshift4/ose-deployer, openshift4/ose-cli-rhel9, +40 more Red Hat OpenShift for Windows Containers openshift4-wincw/windows-machine-config-rhel9-operator, openshift4-wincw/windows-machine-config-operator-bundle Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9 Red Hat Openshift Sandboxed Containers openshift-sandboxed-containers/osc-podvm-builder-rhel9, openshift-sandboxed-containers/osc-podvm-payload-rhel9, openshift-sandboxed-containers/osc-cloud-api-adaptor-rhel9, openshift-sandboxed-containers/osc-cloud-api-adaptor-webhook-rhel9 Red Hat OpenShift Virtualization 4 container-native-virtualization/multus-dynamic-networks-rhel9 Red Hat OpenStack Platform 18.0 rhoso-operators/prometheus-podman-exporter-rhel9 Red Hat Trusted Application Pipeline rhtap-task-runner/rhtap-task-runner-rhel9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 4.6 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
CNA 4.0 4.6 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/containerd/containerd/v2
>=2.0.1, <2.0.5
2.0.5

Affected products

  • containerd containerd

Classification

Weakness
  • CWE-266 Incorrect Privilege Assignment

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.