CVE-2026-66780
Submariner-operator: submariner-operator: flat broker trust model grants every spoke full crud on all endpoints, secrets, and endpointslices in broker namespace
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in the submariner-operator component. The `submariner-k8s-broker-cluster` Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information. Consequently, an attacker can redirect inter-cluster tunnel traffic, enabling a Man-in-the-Middle (MITM) attack across the entire cluster mesh.
| CWE | CWE-284 |
| Vendor | red hat |
| Product | red hat advanced cluster management for kubernetes 2 |
| Published | Aug 18, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2
All versions affected