KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-62370
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 21:54 UTC · Revision 1
Source evidence
KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub
core-osv · Original sourcePublished 21 Sept 2026, 17:07 UTC
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.
osv:CVE-2026-62370
Complete source record
{
"id": "40b34bd601ce66e1f81a19c5b51ceb598ed6f5a34f67f88e87087ffaed1669f4",
"url": "https://osv.dev/vulnerability/CVE-2026-62370",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub",
"summary": "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.",
"evidence": "osv:CVE-2026-62370",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-62370",
"aliases": [
"CVE-2026-62370",
"GHSA-gfw4-49f9-cp25",
"GO-2026-6569"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kubeedge/kubeedge",
"type": "GIT",
"events": [
{
"introduced": "ada5f40c383cbada494e64f71111af7a0743675e"
},
{
"fixed": "5a9d7a2995f87cfec53205f734e55a0609c35cf8"
},
{
"introduced": "bef9dd9e2b090fec90336214f45d4ef2c50ab7da"
},
{
"fixed": "6e5afec56717be29a91756a7e5c76daca7c549ad"
},
{
"introduced": "8e9e9fb155d9dee3fd8b6c00463b1b2be7b3e3b4"
},
{
"fixed": "1a7ee88d3c61dc781cc9c9053066ab3d38519dd5"
},
{
"fixed": "0fe1ea18e5d7fde29633286ddf1c7e71cb39606f"
},
{
"fixed": "725a73ca35a65d91aa6338e52b8faaab6058f528"
},
{
"fixed": "cc79621943fff9d3f62638d9403ef0cfeda3d0e7"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.21.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "1.22.0"
},
{
"fixed": "1.22.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "1.23.0"
},
{
"fixed": "1.23.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "0fe1ea18e5d7fde29633286ddf1c7e71cb39606f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "725a73ca35a65d91aa6338e52b8faaab6058f528"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "cc79621943fff9d3f62638d9403ef0cfeda3d0e7"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "5a9d7a2995f87cfec53205f734e55a0609c35cf8"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v1.21.2"
},
{
"range": [
{
"fixed": "6e5afec56717be29a91756a7e5c76daca7c549ad"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v1.22.2"
},
{
"range": [
{
"fixed": "1a7ee88d3c61dc781cc9c9053066ab3d38519dd5"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v1.23.1"
}
]
}
}
],
"versions": [
"v1.23.0",
"v1.21.1",
"v1.22.1",
"v1.22.0",
"v1.21.0",
"v1.21.0-beta.0",
"v1.20.0-beta.0",
"v1.19.0-beta.0",
"v1.18.0-beta.0",
"v1.17.0-beta.0",
"v1.16.0-beta.0",
"v1.15.0-beta.0",
"v1.14.0-beta.0",
"v1.14.0",
"v1.13.0-beta.0",
"v1.12.0-beta.0",
"v1.11.0-beta.0",
"v1.11.0-alpha.0",
"v1.10.0-beta.0",
"v1.9.0-beta.0",
"v1.9.0",
"v1.8.0-beta.0",
"v1.7.0-beta.0",
"v1.7.0",
"v1.6.0-beta.0",
"v1.5.0-beta.0",
"v1.4.0-beta.0",
"v1.4.0-alpha.0",
"v1.3.0",
"v1.3.0-beta.0",
"v1.3.0-alpha.0",
"v1.2.0-beta.0",
"v1.1.0-beta.0",
"v1.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62370.json"
}
}
],
"modified": "2026-10-28T02:30:31.987683046Z",
"provider": "osv",
"references": [
"https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md",
"https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.md",
"https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.md",
"https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2",
"https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2",
"https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62370.json",
"https://github.com/kubeedge/kubeedge/security/advisories/GHSA-gfw4-49f9-cp25",
"https://nvd.nist.gov/vuln/detail/CVE-2026-62370",
"https://github.com/kubeedge/kubeedge/commit/0fe1ea18e5d7fde29633286ddf1c7e71cb39606f",
"https://github.com/kubeedge/kubeedge/commit/725a73ca35a65d91aa6338e52b8faaab6058f528",
"https://github.com/kubeedge/kubeedge/commit/cc79621943fff9d3f62638d9403ef0cfeda3d0e7",
"https://github.com/kubeedge/kubeedge/pull/7028",
"https://github.com/kubeedge/kubeedge/pull/7029",
"https://github.com/kubeedge/kubeedge/pull/7030"
],
"provider_metadata": {
"cwe_ids": [
"CWE-789"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62370.json"
}
},
"related_cves": [
{
"value": "CVE-2026-62370",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 499091,
"published_at": "2026-09-21T17:07:31.398+00:00"
}