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Fencer Vulns
critical 9.6

CVE-2026-53492 json

containerd CRI checkpoint restore CDI annotation smuggling

published 2026-06-19 4 mo ago modified 2026-09-10 1 mo ago also GHSA-33vj-92qq-66hc , GO-2026-5064 , EUVD-2026-41109

cvss
9.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

containerd is an open-source container runtime. In Versions prior to 2.3.2, 2.2.5 and 2.1.9, the CRI implementation improperly trusts Container Device Interface (CDI) annotations found within untrusted checkpoint image metadata during container restoration. When restoring a container from a checkpoint, containerd preserves CDI-related annotations from the checkpoint archive rather than relying solely on the pod's create-time specification. This allows a user with pod creation permissions to bypass standard Kubernetes resource allocation and device plugin enforcement, injecting arbitrary CDI edits (such as device nodes and host mounts) into the restored container. Successful exploitation requires that the node has CDI enabled and contains a matching host CDI specification for the requested device; environments where CDI is disabled or lacking sensitive device specifications are not affected. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.

Patch / fix

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

debian advisories DEBIAN-CVE-2026-53492

  • 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

ubuntu advisories UBUNTU-CVE-2026-53492

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

  • syft hummingbird 1 1.46.0-0.1.hum1
  • grype hummingbird 1 0.115.0-0.1.hum1
  • trivy hummingbird 1 0.69.3-1.2.hum1

red hat advisories RHSA-2026:32974RHSA-2026:32963RHSA-2026:15862

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

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

  • containerd Alpine 3.24 2.3.2-r0

alpine advisories ALPINE-CVE-2026-53492

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

azure linux advisories AZL-90170

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-2026-53492 updated cvss 8.2

github.com/containerd/containerd: containerd: Security bypass via Container Device Interface (CDI) annotation smuggling during checkpoint restoration.

  • Red Hat Assisted Installer for Red Hat OpenShift Container Platform 2 rhai/assisted-installer-agent-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
    affected: no fix planned “Will not fix”
  • Red Hat Deployment Validation Operator dvo/deployment-validation-rhel8-operator Red Hat Exploit Intelligence exploit-intelligence-tech-preview/agent-client-rhel9 Red Hat Kernel Module Management Operator for Red Hat Openshift kmm/kernel-module-management-must-gather-rhel9 Red Hat Machine Deletion Remediation Operator workload-availability/machine-deletion-remediation-rhel9-operator, workload-availability/machine-deletion-remediation-operator-bundle
    affected: no fix available
  • Red Hat MCP Server for Red Hat OpenShift openshift-mcp-beta/openshift-mcp-server-rhel9 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/assisted-service-8-rhel8, multicluster-engine/assisted-service-9-rhel9, multicluster-engine/assisted-installer-agent-rhel8, multicluster-engine/assisted-installer-agent-rhel9, multicluster-engine/assisted-installer-controller-rhel8, multicluster-engine/assisted-installer-controller-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Node HealthCheck Operator workload-availability/node-healthcheck-must-gather-rhel9
    affected: no fix available
  • Red Hat OpenShift Developer Tools and Services ocp-tools-4/jenkins-agent-base-rhel8
    affected: no fix available “Fix deferred”
  • Red Hat OpenShift Lightspeed 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
    affected: no fix available
  • Red Hat OpenShift Service Mesh 2 openshift-service-mesh/istio-rhel8-operator, openshift-service-mesh/istio-must-gather-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Pen Drive Powered by Red Hat Lightspeed pen-drive/pen-drive-scanner-rhel9
    affected: no fix available “Fix deferred”
show 20 more
  • Red Hat Power monitoring for Red Hat OpenShift openshift-power-monitoring/power-monitoring-rhel9-operator
    affected: no fix available
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/multicloud-integrations-rhel9, rhacm2/multicluster-operators-channel-rhel9, rhacm2/multicluster-operators-subscription-rhel9 Red Hat Ansible Automation Platform 2 ansible-automation-platform-25/aap-must-gather-rhel8
    affected: no fix planned “Will not fix”
  • Red Hat Ceph Storage 6 rhceph/rhceph-promtail-rhel9 Red Hat Ceph Storage 9 rhceph/alloy-rhel10
    affected: no fix available “Fix deferred”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-pipeline-runtime-minimal-cpu-py312-rhel9, rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9, rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9, rhoai/odh-workbench-jupyter-minimal-cpu-py312-rhel9, rhoai/odh-workbench-jupyter-minimal-cuda-py312-rhel9, rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9, +12 more
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4 openshift-kni/commatrix, openshift4/cnf-tests-rhel8, openshift4/cnf-tests-rhel9, openshift4/ose-olm-rukpak-rhel8, openshift4/ztp-site-generate-rhel8, openshift4/ose-secrets-store-csi-mustgather-rhel8, +4 more Red Hat OpenShift Container Platform 5 openshift-kni/commatrix, openshift5/cnf-tests-rhel9, openshift5/ose-cluster-ingress-rhel9-operator, openshift5-dev-preview-beta/openperouter-rhel9-operator, openshift5-dev-preview-beta/openperouter-operator-bundle, openshift5-dev-preview-beta/openperouter-edge-rhel10-operator
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenShift GitOps openshift-gitops-1/must-gather-rhel8, openshift-gitops-1/must-gather-rhel9 Red Hat Trusted Artifact Signer rhtas/ec-rhel9, rhtas/policy-controller-rhel9-operator
    affected: no fix available
  • Red Hat Multicluster Global Hub 1.4.9 multicluster-globalhub/multicluster-globalhub-agent-rhel9 1784061472, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784060681, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1784061010, multicluster-globalhub/multicluster-globalhub-rhel9-operator 1784060515
    fixed: vendor fix RHSA-2026:41030
  • Red Hat Multicluster Global Hub 1.5.8 multicluster-globalhub/multicluster-globalhub-agent-rhel9 1784127491, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784562060, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1784128029, multicluster-globalhub/multicluster-globalhub-rhel9-operator 1784127524
    fixed: vendor fix RHSA-2026:42852
  • Red Hat Multicluster Global Hub 1.6.6 multicluster-globalhub/multicluster-globalhub-agent-rhel9 1784152046, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784561376, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1784151884, multicluster-globalhub/multicluster-globalhub-rhel9-operator 1784151772
    fixed: vendor fix RHSA-2026:44622
  • Red Hat Multicluster Global Hub 1.7.4 multicluster-globalhub/multicluster-globalhub-agent-rhel9 1784768332, multicluster-globalhub/multicluster-globalhub-agent-rhel9 1785775948, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1784906628, multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1785442872, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1784768150, multicluster-globalhub/multicluster-globalhub-manager-rhel9 1785773056, +2 more
    fixed: vendor fix RHSA-2026:47149
  • Red Hat Multicluster Global Hub 1.8.2 multicluster-globalhub/multicluster-globalhub-grafana-rhel9 1785443657
    fixed: vendor fix RHSA-2026:52946
  • Red Hat OpenShift API for Data Protection 1.3 oadp/oadp-mustgather-rhel9 1785177359
    fixed: vendor fix RHSA-2026:51033
  • Red Hat OpenShift API for Data Protection 1.4 oadp/oadp-mustgather-rhel9 1786946294
    fixed: vendor fix RHSA-2026:59467
  • Red Hat OpenShift API for Data Protection 1.5 oadp/oadp-mustgather-rhel9 1788859896
    fixed: vendor fix RHSA-2026:66022
  • Red Hat Advanced Cluster Management for Kubernetes 2.13 rhacm2/submariner-rhel9-operator 1782933193
    fixed: vendor fix RHSA-2026:36873
  • Red Hat Advanced Cluster Security 4.9 advanced-cluster-security/rhacs-rhel8-operator 1785413210, advanced-cluster-security/rhacs-scanner-v4-rhel8 1785413210
    fixed: vendor fix RHSA-2026:48872
  • Red Hat Advanced Cluster Security for Kubernetes for IBM Power, little endian 4.10 advanced-cluster-security/rhacs-rhel8-operator 1785420959
    fixed: vendor fix RHSA-2026:48913
  • Red Hat Ansible Automation Platform 2.6 ansible-automation-platform-26/aap-must-gather-rhel9 1789605305
    fixed: vendor fix RHSA-2026:71179
  • Red Hat Ansible Automation Platform 2.7 ansible-automation-platform-27/aap-must-gather-rhel9 1789518161
    fixed: vendor fix RHSA-2026:71177
  • Red Hat Hardened Images syft 1.46.0-0.1.hum1, trivy 0.69.3-1.2.hum1, grype 0.115.0-0.1.hum1
    fixed: vendor fix RHSA-2026:32963

3 more fixed, 40 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

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N
CNA 4.0 8.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/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 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/containerd/containerd/v2
>=2.1.0, <2.1.9
>=2.2.0, <2.2.5
>=2.3.0, <2.3.2
2.1.9
2.2.5
2.3.2
go github.com/containerd/containerd
all versions
 no fix listed

Affected products

  • containerd containerd

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-863 Incorrect Authorization

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.