CVE-2026-62370KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-789
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kubeedge kubeedge kubeedge:kubeedge (from the name) | from 1.0.0, < 1.21.2; from 1.22.0, < 1.22.2; from 1.23.0, < 1.23.1 | CNA record |
References
- https://github.com/kubeedge/kubeedge/security/advisories/GHSA-gfw4-49f9-cp25x-refsource-confirm
- https://github.com/kubeedge/kubeedge/pull/7028x-refsource-misc
- https://github.com/kubeedge/kubeedge/pull/7029x-refsource-misc
- https://github.com/kubeedge/kubeedge/pull/7030x-refsource-misc
- https://github.com/kubeedge/kubeedge/commit/0fe1ea18e5d7fde29633286ddf1c7e71cb39606fx-refsource-misc
- https://github.com/kubeedge/kubeedge/commit/725a73ca35a65d91aa6338e52b8faaab6058f528x-refsource-misc
- https://github.com/kubeedge/kubeedge/commit/cc79621943fff9d3f62638d9403ef0cfeda3d0e7x-refsource-misc
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.mdx-refsource-misc
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.mdx-refsource-misc
- https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.mdx-refsource-misc
- https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2x-refsource-misc
- https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2x-refsource-misc
- https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.