Description
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.0.0 until 1.21.2, 1.22.2, and 1.23.1, Reader.Read in pkg/viaduct/pkg/packer trusts the 32-bit PackageHeader.PayloadLen received through the CloudHub viaduct message-processing path and allocates that amount of memory before validating an upper bound. An authenticated malicious or compromised edge peer can repeatedly send crafted headers with excessive declared lengths, causing memory exhaustion, CloudHub process termination or restart loops, and temporary disruption of cloud-edge communication. This issue does not provide unauthenticated access or direct code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.
Published: 2026-09-21
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Mon, 21 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Kubeedge
Kubeedge kubeedge
Vendors & Products Kubeedge
Kubeedge kubeedge

Mon, 21 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
Description KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.0.0 until 1.21.2, 1.22.2, and 1.23.1, Reader.Read in pkg/viaduct/pkg/packer trusts the 32-bit PackageHeader.PayloadLen received through the CloudHub viaduct message-processing path and allocates that amount of memory before validating an upper bound. An authenticated malicious or compromised edge peer can repeatedly send crafted headers with excessive declared lengths, causing memory exhaustion, CloudHub process termination or restart loops, and temporary disruption of cloud-edge communication. This issue does not provide unauthenticated access or direct code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.
Title KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub
Weaknesses CWE-789
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Kubeedge Kubeedge
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-21T17:07:31.398Z

Reserved: 2026-07-13T22:04:59.678Z

Link: CVE-2026-62370

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T17:17:36.957

Modified: 2026-09-21T17:17:36.957

Link: CVE-2026-62370

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T18:30:17Z

Weaknesses
  • CWE-789

    Memory Allocation with Excessive Size Value