Answer in brief
CVE-2026-62370 records a Medium severity (CVSS 6.5) vulnerability in KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub. The current sources do not mark it as known exploited. The current feed maps kubeedge/kubeedge (generic), github.com/kubeedge/kubeedge (go), github.com/kubeedge/kubeedge (go), github.com/kubeedge/kubeedge (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps kubeedge/kubeedge (generic), github.com/kubeedge/kubeedge (go), github.com/kubeedge/kubeedge (go), github.com/kubeedge/kubeedge (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| kubeedge/kubeedgegeneric | >=1.0.0 <1.21.2 || >=1.22.0 <1.22.2 || >=1.23.0 <1.23.1 | 1.21.2, 1.22.2, 1.23.1 |
| github.com/kubeedge/kubeedgego | >=1.0.0,<1.21.2 | 1.21.2 |
| github.com/kubeedge/kubeedgego | >=1.22.0,<1.22.2 | 1.22.2 |
| github.com/kubeedge/kubeedgego | >=1.23.0,<1.23.1 | 1.23.1 |
| github.com/kubeedge/kubeedgego | >=1.0.0 <1.21.2 | 1.21.2 |
| github.com/kubeedge/kubeedgego | >=1.22.0 <1.22.2 | 1.22.2 |
| github.com/kubeedge/kubeedgego | >=1.23.0 <1.23.1 | 1.23.1 |
Published upstream
Sep 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 21, 2026
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.
Quoted source text, attributed separately from HOL analysis.