CVE-2026-66780: Red Hat Advanced Cluster Management for Kubernetes 2.11 (exact versions not specified); +6 more affected products

Affected technology

Red Hat Advanced Cluster Management for Kubernetes 2.11 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2.13 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2.14 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2.15 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2.16 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2.17 · Exact affected versions not specified by the source
Red Hat

Red Hat Advanced Cluster Management for Kubernetes 2 · Exact affected versions not specified by the source
Red Hat

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An attacker can redirect inter-cluster tunnel traffic, enabling a Man-in-the-Middle (MITM) attack across the entire cluster mesh. Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality impact as high; integrity and availability impact as none.