CVE-2026-66780

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.

Score
CVSS 3.1 6.5 Medium
Status
Awaiting Analysis - secalert@redhat.com
Published
2026-08-18
Last modified
2026-10-19
Weaknesses
CWE-532

Affected products

References

 
 
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