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CVE-2026-66787 Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice and serviceimport ips

🗓️ 20 Aug 2026 18:15:23Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Lighthouse in Red Hat ACM allows cross-cluster DNS spoofing via unvalidated EndpointSlice IPs for MITM attacks.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-66787
20 Aug 202600:00
cve
euvd
EUVD
EUVD-2026-63533
20 Aug 202618:15
euvd
nvd
NVD
CVE-2026-66787
20 Aug 202619:16
nvd
ptsecurity
Positive Technologies
PT-2026-79099
20 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-66787
20 Aug 202617:47
redhatcve
vulnrichment
Vulnrichment
CVE-2026-66787 Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice and serviceimport ips
20 Aug 202618:15
vulnrichment
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Advanced Cluster Management for Kubernetes 2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhacm2/lighthouse-agent-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:acm:2"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Advanced Cluster Management for Kubernetes 2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhacm2/lighthouse-coredns-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:acm:2"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Advanced Cluster Management for Kubernetes 2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhacm2/subctl-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:acm:2"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Advanced Cluster Management for Kubernetes 2",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhacm2/submariner-rhel9-operator",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:acm:2"
    ]
  }
]

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