REDHAT-BUG-2496130: High severity containerd containerd vulnerability

Published Jul 1, 2026
·
Updated

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 Software

1 affected component
containerd containerd<2.3.2, <2.2.5, <2.1.9

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade containerd CRI to a version that resolves this vulnerability.

    Fixed in 2.3.2
  2. Upgrade

    Upgrade containerd CRI to a version that resolves this vulnerability.

    Fixed in 2.2.5
  3. Upgrade

    Upgrade containerd CRI to a version that resolves this vulnerability.

    Fixed in 2.1.9

Event History

Jul 1, 2026
Data Sourced
via Red Hat·07:01 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2496130?

The severity of REDHAT-BUG-2496130 is high, rated at 7.

2

How do I fix REDHAT-BUG-2496130?

To fix REDHAT-BUG-2496130, upgrade containerd to version 2.3.2, 2.2.5, or 2.1.9 or later.

3

What vulnerability does REDHAT-BUG-2496130 address?

REDHAT-BUG-2496130 addresses a vulnerability related to improper trust of Container Device Interface annotations during container restoration.

4

Which versions of containerd are affected by REDHAT-BUG-2496130?

Versions of containerd prior to 2.3.2, 2.2.5, and 2.1.9 are affected by REDHAT-BUG-2496130.

5

What impact does REDHAT-BUG-2496130 have?

REDHAT-BUG-2496130 can lead to security risks due to the improper handling of untrusted checkpoint image metadata.

Contact

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