Medium
Blind VXLAN injection into encrypted overlay networks from cluster peer
Type: advisorySources: OSV
The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-92542
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:15 UTC · Revision 1
Source evidence
Blind VXLAN injection into encrypted overlay networks from cluster peer
core-osv · Original sourcePublished 7 Oct 2026, 16:42 UTC
The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
osv:CVE-2026-92542
Complete source record
{
"id": "a000004d9a2bb69cddb1fb02c83c19c4e9c583c16905bf63c897ba016a314046",
"url": "https://osv.dev/vulnerability/CVE-2026-92542",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Blind VXLAN injection into encrypted overlay networks from cluster peer",
"summary": "The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to",
"evidence": "osv:CVE-2026-92542",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-92542",
"aliases": [
"CVE-2026-92542",
"GHSA-6m9p-4h64-m6vh"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/moby/moby",
"type": "GIT",
"events": [
{
"introduced": "8b79278316b532d396048bc8c2fa015a85d53a53"
},
{
"fixed": "8af9fe3a36bab3e039862a2ab1cef1880c9b4d03"
},
{
"introduced": "9760b1f3003c69879d6bf330f44740297ce59335"
},
{
"fixed": "c8e265787b0a89d161f34c3920f73f136974744b"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "26.0.0"
},
{
"fixed": "29.8.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "v2.0.0-beta.0"
},
{
"fixed": "v2.0.0-beta.25"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
}
],
"versions": [
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"api/v1.56.1",
"v2.0.0-beta.24",
"docker-v29.8.1",
"v2.0.0-beta.23",
"docker-v29.8.0",
"docker-v29.8.0-rc.1",
"client/v0.6.0",
"api/v1.56.0",
"v2.0.0-beta.21",
"docker-v29.7.1",
"docker-v29.7.2",
"v2.0.0-beta.20",
"docker-v29.7.0",
"v2.0.0-beta.19",
"docker-v29.7.0-rc.1",
"client/v0.5.1",
"docker-v29.6.2",
"docker-v29.6.1",
"docker-v29.4.3",
"v2.0.0-beta.18",
"docker-v29.6.0",
"v2.0.0-beta.16",
"docker-v29.5.3",
"v2.0.0-beta.15",
"docker-v29.5.2",
"v2.0.0-beta.14",
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"v2.0.0-beta.13",
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"api/v1.55.0-rc.1",
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"docker-v29.4.2",
"v2.0.0-beta.11",
"docker-v29.4.1",
"v2.0.0-beta.8",
"docker-v29.3.1",
"docker-v29.4.0",
"v2.0.0-beta.10",
"client/v0.4.1",
"api/v1.54.2",
"v2.0.0-beta.9",
"docker-v29.4.0-rc.1",
"client/v0.4.0",
"api/v1.54.1",
"docker-v29.2.1",
"docker-v29.1.5",
"v2.0.0-beta.7",
"docker-v29.3.0",
"client/v0.3.0",
"api/v1.54.0",
"docker-v29.3.0-rc.1",
"client/v0.2.3-rc.1",
"api/v1.54.0-rc.1",
"v2.0.0-beta.6",
"docker-v29.2.0",
"client/v0.2.2",
"api/v1.53.0",
"docker-v29.2.0-rc.2",
"client/v0.2.2-rc.2",
"api/v1.53.0-rc.2",
"docker-v29.1.4",
"docker-v29.1.3",
"docker-v29.2.0-rc.1",
"client/v0.2.2-rc.1",
"api/v1.53.0-rc.1",
"docker-v29.0.4",
"docker-v29.1.2",
"docker-v29.1.1",
"v2.0.0-beta.5",
"docker-v29.1.0",
"client/v0.2.1",
"v2.0.0-beta.4",
"client/v0.2.0",
"docker-v29.0.3",
"docker-v29.0.2",
"docker-v29.1.0-rc.1",
"docker-v29.0.1",
"v2.0.0-beta.3",
"docker-v29.0.0",
"client/v0.1.0",
"api/v1.52.0",
"v2.0.0-beta.2",
"docker-v29.0.0-rc.3",
"client/v0.1.0-rc.1",
"api/v1.52.0-rc.1",
"v2.0.0-beta.1",
"docker-v29.0.0-rc.2",
"client/v0.1.0-beta.3",
"api/v1.52.0-beta.4",
"docker-v29.0.0-rc.1",
"api/v1.52.0-beta.3",
"client/v0.1.0-beta.2",
"client/v0.1.0-beta.1",
"api/v1.52.0-beta.2",
"v2.0.0-beta.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92542.json"
}
}
],
"modified": "2026-10-28T02:30:29.777229022Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92542.json",
"https://github.com/moby/moby/security/advisories/GHSA-6m9p-4h64-m6vh",
"https://nvd.nist.gov/vuln/detail/CVE-2026-92542"
],
"provider_metadata": {
"cna_assigner": "Docker",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "25.0.19"
},
{
"fixed": "v25.0.19"
},
{
"introduced": "v26.0.0"
},
{
"fixed": "*"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92542.json"
}
},
"related_cves": [
{
"value": "CVE-2026-92542",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496724,
"published_at": "2026-10-07T16:42:20.998+00:00"
}