CVE-2026-66780mediumCWE-532

CVE-2026-66780: medium-severity vulnerability in Red Hat Advanced Cluster Management for…

Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.13Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.14Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.15Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17
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