Bug 2496552

Summary: CVE-2026-53492 docker-buildkit: containerd: Security bypass via Container Device Interface (CDI) annotation smuggling during checkpoint restoration. [fedora-all]
Product: [Fedora] Fedora Reporter: Rohit Keshri <rkeshri>
Component: docker-buildkitAssignee: Brad Smith <bradley.g.smith>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: bradley.g.smith, go-sig, maxwell
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["57b7349e-046e-4b0a-b5ee-9960edd2eb00"]}
Fixed In Version: docker-buildkit-0.32.1-1.fc45 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-03 16:33:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2496130    

Description Rohit Keshri 2026-07-02 14:49:23 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 Brad Smith 2026-08-03 16:33:19 UTC 
govulncheck

=== Symbol Results ===

No vulnerabilities found.

=== Package Results ===

No other vulnerabilities found.

=== Module Results ===

Vulnerability #1: GO-2026-5932
    The golang.org/x/crypto/openpgp package is unmaintained, unsafe by design,
    and has known security issues
  More info: https://pkg.go.dev/vuln/GO-2026-5932
  Module: golang.org/x/crypto
    Found in: golang.org/x/crypto.0
    Fixed in: N/A

Your code is affected by 0 vulnerabilities.
This scan also found 0 vulnerabilities in packages you import and 1
vulnerability in modules you require, but your code doesn't appear to call these
vulnerabilities.
Comment 2 Fedora Update System 2026-08-03 16:50:50 UTC 
FEDORA-2026-26c0a0ee30 (docker-buildkit-0.32.1-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-26c0a0ee30
Comment 3 Fedora Update System 2026-08-03 16:56:25 UTC 
FEDORA-2026-26c0a0ee30 (docker-buildkit-0.32.1-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.