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Vulnerability · Published Jul 1, 2026 · Assigned by GitHub_M

CVE-2026-53492containerd CRI checkpoint restore CDI annotation smuggling

High 8.4

In plain English

A high-severity improper input validation in containerd from containerd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.4High
Exploit odds (30 days)0.4%top 70.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.24containerd2.3.2-r0ALPINE-CVE-2026-53492
Debian:14containerd2.1.9+ds1-1DEBIAN-CVE-2026-53492
Gogithub.com/containerd/containerdno fix listedGO-2026-5064
Gogithub.com/containerd/containerd/v22.3.2GHSA-33vj-92qq-66hc
Gogithub.com/containerd/containerd/v22.2.5GHSA-33vj-92qq-66hc
Gogithub.com/containerd/containerd/v22.1.9GHSA-33vj-92qq-66hc
Gogithub.com/containerd/containerd/v22.1.9, 2.2.5, 2.3.2GO-2026-5064
Ubuntu:22.04:LTScontainerd-app2.2.1-0ubuntu1~22.04.2UBUNTU-CVE-2026-53492
Ubuntu:24.04:LTScontainerd-app2.2.1-0ubuntu1~24.04.3UBUNTU-CVE-2026-53492
Ubuntu:25.10containerd-app2.2.1-0ubuntu1~25.10.2UBUNTU-CVE-2026-53492
Ubuntu:26.04:LTScontainerd-app2.2.2-0ubuntu1.1UBUNTU-CVE-2026-53492
Ubuntu:25.10containerd-stable2.1.6-0ubuntu1~25.10.2UBUNTU-CVE-2026-53492
Ubuntu:26.04:LTScontainerd-stable2.2.2-0ubuntu1.1UBUNTU-CVE-2026-53492

Affected products (as reported)

VendorProductVersions
containerd containerd >= 2.1.0, < 2.1.9>= 2.2.0, < 2.2.5>= 2.3.0, < 2.3.2

Weakness: CWE-20, CWE-863 · Vector: 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

References