| ID |
CVE-2026-66787
|
| Sažetak |
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. |
| Reference |
|
| CVSS |
| Base: | 8.7 |
| Impact: | 5.8 |
| Exploitability: | 2.3 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
HIGH |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| HIGH |
HIGH |
NONE |
|
| CVSS vektor |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |
| Zadnje važnije ažuriranje |
12-10-2026 - 22:17 |
| Objavljeno |
20-08-2026 - 19:16 |
