Medium
Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured
Type: advisorySources: OSV
When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-18679, CVE-2026-52724
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 23:03 UTC · Revision 1
Source evidence
Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured
core-osv · Original sourcePublished 12 Aug 2026, 18:52 UTC
When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.
osv:CVE-2026-18679
Complete source record
{
"id": "358e167e47b86d04f5c846f5221fd099fb696681d0204aaa56b888ad30a97a19",
"url": "https://osv.dev/vulnerability/CVE-2026-18679",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured",
"summary": "When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.",
"evidence": "osv:CVE-2026-18679",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-18679",
"aliases": [
"CVE-2026-18679",
"CVE-2026-52724",
"GHSA-wvmp-6r4v-j6cv",
"GO-2026-6013"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kumahq/kuma",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "90c4dfdd7b5b67db087baca61d04ea8a4712ff2e"
},
{
"introduced": "1110a0305eec00f1b2fd7482d6df4f3dd6a9d78e"
},
{
"fixed": "2955869905710384ac686ab651d19953fc85e779"
},
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{
"fixed": "00ea5e4a54e2ca09b05d95f73e025d40d6f70c29"
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{
"introduced": "6b4779917a9f9f9a73ef959a22e243b9a14b4ba1"
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{
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{
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{
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"database_specific": {
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"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
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{
"range": [
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{
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{
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{
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"source": "AFFECTED_FIELD",
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{
"range": [
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{
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"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
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{
"range": [
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{
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],
"source": "AFFECTED_FIELD",
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}
}
],
"versions": [
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"0.7.1",
"0.7.0",
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"0.5.0",
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"0.4.0",
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"0.3.2",
"0.3.2-rc2",
"0.3.1",
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"0.3.0-rc1",
"0.2.3-rc4",
"0.2.2",
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"0.2.1",
"0.2.0",
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"0.1.2",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18679.json"
}
}
],
"modified": "2026-10-28T02:30:40.173596867Z",
"provider": "osv",
"references": [
"https://developer.konghq.com/mesh/changelog/",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18679.json",
"https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cv",
"https://nvd.nist.gov/vuln/detail/CVE-2026-18679",
"https://github.com/kumahq/kuma/pull/16777"
],
"provider_metadata": {
"cwe_ids": [
"CWE-295"
],
"cna_assigner": "Kong",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18679.json"
}
},
"related_cves": [
{
"value": "CVE-2026-18679",
"evidence": "/id"
},
{
"value": "CVE-2026-52724",
"evidence": "/aliases"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 507793,
"published_at": "2026-08-12T18:52:31.146+00:00"
}