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Fencer Vulns
medium 5.5

CVE-2026-47262 json

containerd image-triggered runtime DoS via unbounded group parsing

published 2026-06-19 4 mo ago modified 2026-09-10 1 mo ago also GHSA-jpcc-p29g-p8mq , GO-2026-5475 , EUVD-2026-41106

cvss
5.5
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 18%
public exploits
0
none known

Summary

containerd is an open-source container runtime. Versions prior to 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2, contain a vulnerability that allows a maliciously crafted image to cause a Denial of Service (DoS) condition. When creating a container from this image, memory exhaustion occurs, leading to an Out Of Memory (OOM) kill of the containerd process. This renders the container runtime API unavailable and can disrupt clients such as the Docker Engine or Kubernetes control-plane components. This issue has been fixed in versions 1.7.33, 2.0.10, 2.1.9, 2.2.5 and 2.3.2.

Patch / fix

  • go github.com/containerd/containerd/v2 2.0.10, 2.1.9, 2.2.5, 2.3.2
  • go github.com/containerd/containerd 1.7.33
  • linuxfoundation containerd 1.7.33, 2.0.10, 2.1.9, 2.2.5, 2.3.2
  • containerd Debian 14 2.1.9+ds1-1

debian advisories DEBIAN-CVE-2026-47262

  • containerd Ubuntu 22.04 LTS 1.6.12-0ubuntu1~22.04.11
  • containerd-app Ubuntu 22.04 LTS 2.2.1-0ubuntu1~22.04.2
  • containerd-app Ubuntu 24.04 LTS 2.2.1-0ubuntu1~24.04.3
  • containerd-app Ubuntu 25.10 2.2.1-0ubuntu1~25.10.2
  • containerd-app Ubuntu 26.04 LTS 2.2.2-0ubuntu1.1
  • containerd-stable Ubuntu 25.10 2.1.6-0ubuntu1~25.10.2
  • containerd-stable Ubuntu 26.04 LTS 2.2.2-0ubuntu1.1
  • containerd Ubuntu Pro 16.04 LTS 1.2.6-0ubuntu1~16.04.6+esm7

ubuntu advisories UBUNTU-CVE-2026-47262

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

  • kubernetes1.36 hummingbird 1 1.36.2-2.hum1
  • kubernetes1.36-client hummingbird 1 1.36.2-2.hum1
  • kubernetes1.36-kubeadm hummingbird 1 1.36.2-2.hum1
  • kubernetes1.36-systemd hummingbird 1 1.36.2-2.hum1
  • trivy hummingbird 1 0.72.0-0.1.hum1
  • syft hummingbird 1 1.46.0-0.1.hum1
  • grype hummingbird 1 0.115.0-0.1.hum1
  • opentelemetry-collector-contrib hummingbird 1 0.155.0-0.1.hum1

red hat advisories RHSA-2026:26990RHSA-2026:35111RHSA-2026:32974RHSA-2026:32963RHSA-2026:29770RHSA-2026:25535

  • containerd Linux Micro 6.1 1.7.29-slfo.1.1_5.1
  • containerd SLES LTSS Extended Security 12 SP5 1.7.29-16.119.1

suse advisories SUSE-SU-2026:4923-1SUSE-SU-2026:24381-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • containerd openSUSE Leap 16.0 1.7.33-160000.1.1
  • trivy openSUSE Leap 16.0 0.71.2-160000.1.1
  • containerd openSUSE Tumbleweed 1.7.33-1.1
  • trivy openSUSE Tumbleweed 0.71.2-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:21213-1openSUSE-SU-2026:21072-1openSUSE-SU-2026:11107-1openSUSE-SU-2026:11102-1

  • containerd Alpine 3.24 2.3.2-r0

alpine advisories ALPINE-CVE-2026-47262

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • containerd2 Azure Linux 3.0 2.2.4-3
  • moby-containerd-cc Azure Linux 3.0 1.7.7-19

azure linux advisories AZL-90176AZL-91782

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-2026-47262 updated cvss 6.5

github.com/containerd/containerd: containerd: Denial of Service via maliciously crafted image leading to unbounded group parsing

  • Red Hat Hardened Images syft 1.46.0-0.1.hum1, trivy 0.72.0-0.1.hum1, grype 0.115.0-0.1.hum1, kubernetes1.35 1.35.6-1.hum1, kubernetes1.36 1.36.2-2.hum1, kubernetes1.35-client 1.35.6-1.hum1, +6 more
    fixed: vendor fix RHSA-2026:32963
  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai/assisted-installer-agent-rhel9, assisted/agent-preinstall-image-builder-rhel9 Red Hat Confidential Compute Attestation openshift-sandboxed-containers/osc-monitor-rhel9, openshift-sandboxed-containers/osc-must-gather-rhel9, openshift-sandboxed-containers/osc-podvm-payload-rhel9, openshift-sandboxed-containers/osc-cloud-api-adaptor-rhel9 Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator Red Hat Exploit Intelligence exploit-intelligence-tech-preview/agent-client-rhel9 Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9 Red Hat Kernel Module Management Operator for Red Hat Openshift kmm/kernel-module-management-must-gather-rhel9
    +24 more products
    Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/logging-loki-rhel9, openshift-logging/cluster-logging-rhel9-operator Red Hat Logical Volume Manager Storage lvms4/lvms-must-gather-rhel9 Red Hat Machine Deletion Remediation Operator workload-availability/machine-deletion-remediation-rhel9-operator, workload-availability/machine-deletion-remediation-operator-bundle Red Hat MCP Server for Red Hat OpenShift openshift-mcp-beta/openshift-mcp-server-rhel9 Red Hat Migration Toolkit for Containers rhmtc/openshift-migration-log-reader-rhel8, rhmtc/openshift-migration-must-gather-rhel8 Red Hat Migration Toolkit for Virtualization mtv-candidate/mtv-api-rhel9, mtv-candidate/mtv-rhel9-operator, mtv-candidate/mtv-virt-v2v-rhel9, mtv-candidate/mtv-operator-bundle, mtv-candidate/mtv-controller-rhel9, mtv-candidate/mtv-validation-rhel9, +10 more Red Hat Multicluster Engine for Kubernetes multicluster-engine/must-gather-rhel9, multicluster-engine/assisted-installer-rhel8, 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 Red Hat Multicluster Global Hub multicluster-globalhub/multicluster-globalhub-agent-rhel9, multicluster-globalhub/multicluster-globalhub-grafana-rhel9, multicluster-globalhub/multicluster-globalhub-manager-rhel9, multicluster-globalhub/multicluster-globalhub-rhel9-operator Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-must-gather-rhel9 Red Hat OpenShift API for Data Protection oadp/oadp-mustgather-rhel9 Red Hat OpenShift Developer Tools and Services helm, ocp-tools-4/jenkins-rhel8, ocp-tools-4/jenkins-rhel9, ocp-tools-4/jenkins-agent-base-rhel8, ocp-tools-4/jenkins-agent-base-rhel9 Red Hat OpenShift Lightspeed openshift-lightspeed/openshift-mcp-server-rhel9, openshift-lightspeed/lightspeed-agentic-sandbox-rhel9 Red Hat OpenShift Pipelines openshift-pipelines/pipelines-controller-rhel8, openshift-pipelines/pipelines-entrypoint-rhel8, openshift-pipelines/pipelines-results-watcher-rhel8, openshift-pipelines/pipelines-sidecarlogresults-rhel8 Red Hat OpenShift Serverless openshift-serverless-1/serverless-must-gather-rhel9 Red Hat OpenShift Service Mesh 2 openshift-service-mesh/istio-rhel8-operator, openshift-service-mesh/istio-must-gather-rhel9 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/istio-rhel9-operator, openshift-service-mesh/istio-must-gather-rhel9 Red Hat Pen Drive Powered by Red Hat Lightspeed pen-drive/pen-drive-scanner-rhel9 Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/power-monitoring-rhel9-operator Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/acm-grafana-rhel9, rhacm2/acm-must-gather-rhel9, rhacm2/multiclusterhub-rhel9, rhacm2/submariner-rhel9-operator, rhacm2/submariner-operator-bundle, rhacm2/multicloud-integrations-rhel9, +2 more Red Hat Advanced Cluster Security 4 advanced-cluster-security/rhacs-main-rhel8, advanced-cluster-security/rhacs-main-rhel9, advanced-cluster-security/rhacs-roxctl-rhel8, advanced-cluster-security/rhacs-roxctl-rhel9, advanced-cluster-security/rhacs-rhel8-operator, advanced-cluster-security/rhacs-rhel9-operator, +3 more Red Hat Ansible Automation Platform 2 ansible-automation-platform-24/aap-must-gather-rhel8, ansible-automation-platform-25/aap-must-gather-rhel8, ansible-automation-platform-26/aap-must-gather-rhel9, ansible-automation-platform-27/aap-must-gather-rhel9 Red Hat Build of Kueue kueue/kueue-must-gather-rhel9 Red Hat Ceph Storage 6 rhceph/rhceph-promtail-rhel9 Red Hat Ceph Storage 9 rhceph/alloy-rhel10
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 conmon, podman, skopeo, buildah, podman-tests, skopeo-tests, +8 more Red Hat Enterprise Linux 9 conmon, podman, buildah, podman-tests, buildah-tests, podman-docker, +4 more
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift AI (RHOAI) rhoai/rhai-cli-rhel9, rhoai/odh-must-gather-rhel9, rhoai/odh-spark-operator-rhel9, rhoai/odh-th06-cpu-torch291-py312-rhel9, rhoai/odh-th06-cuda130-torch291-py312-rhel9, rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9, +17 more Red Hat OpenShift Container Platform 4 cri-o, conmon, podman, openshift, microshift, podman-tests, +130 more Red Hat OpenShift Container Platform 5 cri-o, openshift, microshift, openshift-kni/commatrix, openshift5/cnf-tests-rhel9, openshift5/ose-tests-rhel9, +34 more Red Hat Openshift Data Foundation 4 odf4/mcg-core-rhel9, odf4/odf-must-gather-rhel9, odf4/odf-cloudnative-pg-rhel9-operator Red Hat OpenShift Dev Spaces devspaces/traefik-rhel9 Red Hat OpenShift for Windows Containers openshift4-wincw/windows-machine-config-rhel9-operator
    +1 more products
    Red Hat OpenShift GitOps openshift-gitops-1/argocd-rhel8, openshift-gitops-1/argocd-rhel9, openshift-gitops-1/must-gather-rhel8, openshift-gitops-1/must-gather-rhel9
    not affected: vulnerable code not present

6 more not affected in the full advisory

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
4 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/containerd/containerd/v2
>=2.0.0, <2.0.10
>=2.1.0, <2.1.9
>=2.2.0, <2.2.5
>=2.3.0, <2.3.2
2.0.10
2.1.9
2.2.5
2.3.2
go github.com/containerd/containerd
>=1.7.0, <1.7.33
1.7.33

Affected products

  • containerd containerd

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

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.