CIS Benchmarks for Kubernetes Components

Your cluster passes every CKA networking question, handles rolling deployments flawlessly, and runs production workloads without breaking a sweat. Then a security audit lands on your desk with 47 findings from the CIS Kubernetes Benchmark, and half of them are on components you assumed were configured correctly out of the box.

CIS Benchmarks are consensus-based security configuration guides developed by the Center for Internet Security. The Kubernetes benchmark covers every major component: etcd, kubelet, API server, controller manager, and scheduler. Each control maps to a specific configuration flag or file permission, with clear pass/fail criteria. Security teams enforce these benchmarks in regulated environments, and the CKS exam expects you to run them, interpret results, and fix findings.