CVE-2026-53492 (GCVE-0-2026-53492)

Vulnerability from cvelistv5 – Published: 2026-07-01 17:59 – Updated: 2026-07-02 12:50
VLAI
Title
containerd CRI checkpoint restore CDI annotation smuggling
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.
Severity
8.4 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-02 12:50 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
containerd containerd Affected: >= 2.1.0, < 2.1.9
Affected: >= 2.2.0, < 2.2.5
Affected: >= 2.3.0, < 2.3.2
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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