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Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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Thu, 20 Aug 2026 19:30:00 +0000
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| Metrics |
ssvc
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Thu, 20 Aug 2026 18:30:00 +0000
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| Description | A flaw was found in the lighthouse component of Red Hat Advanced Cluster Management for Kubernetes. This vulnerability stems from insufficient validation of advertised IP addresses within EndpointSlice objects. A compromised spoke cluster can exploit this by creating EndpointSlices with attacker-controlled IP addresses, causing other clusters' lighthouse DNS to redirect legitimate service traffic to malicious endpoints. This enables a remote attacker to conduct transparent Man-in-the-Middle (MITM) attacks on cross-cluster service communications, potentially leading to unauthorized information disclosure and data manipulation. | |
| Title | Lighthouse: lighthouse: cross-cluster dns spoofing via unvalidated endpointslice and serviceimport ips | |
| First Time appeared |
Redhat
Redhat acm |
|
| Weaknesses | CWE-345 | |
| CPEs | cpe:/a:redhat:acm:2 | |
| Vendors & Products |
Redhat
Redhat acm |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-20T18:52:19.463Z
Reserved: 2026-07-27T17:51:24.885Z
Link: CVE-2026-66787
Updated: 2026-08-20T18:52:14.761Z
Status : Received
Published: 2026-08-20T19:16:58.637
Modified: 2026-08-20T19:16:58.637
Link: CVE-2026-66787
No data.
OpenCVE Enrichment
No data.
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CWE-345
Insufficient Verification of Data Authenticity