Glossary / Kubernetes Security
Kubernetes Security
Kubernetes security testing is a hands-on assessment of cluster configuration, workload identity, and network controls to confirm whether a compromised pod can reach sensitive data or control-plane actions. It documents real access paths and the exact changes needed to close them.
Kubernetes adds layers of control—service accounts, RBAC roles, network policies, pod security standards, and admission rules. Testing checks how those controls behave together in your specific cluster rather than assuming default settings are sufficient.
A typical test starts from a low-privilege workload and validates whether it can access the Kubernetes API, read secrets outside its namespace, or reach the underlying node. Each path is recorded with evidence so engineers can reproduce it and verify the fix.
Remediation guidance is specific and review-ready: tighten RBAC bindings, scope service account tokens, enforce pod security standards, and apply default-deny network policies. Results include clear scope boundaries and retest criteria so fixes are easy to confirm internally.
Common Kubernetes security risks that create real access paths
Most Kubernetes risks are about how identity, admission controls, and network boundaries combine. We validate these combinations because they show whether a compromised pod can actually move to the control plane, other namespaces, or sensitive data.
Over-permissive service accounts and RBAC bindings
Default or reused service accounts often carry broad roles that let pods list secrets, modify workloads, or access cluster-wide resources.
Resolution: We calculate effective RBAC permissions per service account and validate the shortest path to sensitive actions.
Namespace isolation that breaks under real paths
Network policies or admission rules look correct in isolation but allow cross-namespace traffic or API access through shared components.
Resolution: We test lateral movement with controlled requests and confirm whether isolation holds in practice.
Privilege escalation via pod security gaps
Pods can run with escalated privileges, host mounts, or unsafe capabilities that enable container escape or host access.
Resolution: We validate effective pod security standards and attempt safe escalation paths to confirm exposure.
Secrets exposure through workloads and metadata
Secrets and tokens are accessible from pods, CI runners, or sidecars beyond the intended namespace or workload scope.
Resolution: We trace token and secret access from a low-privilege pod and document where scope boundaries fail.
Control-plane access from internal workloads
Cluster API endpoints are reachable from internal networks without adequate authentication or boundary enforcement.
Resolution: We validate API reachability, authentication requirements, and the impact of any reachable paths.
Testing approach for Kubernetes security
We keep Kubernetes testing predictable: agree the cluster scope, validate controls with safe workflows, and document what was verified. No surprise changes or add-ons.
Confirm scope and access
We list the clusters, namespaces, identities, and environments in scope and agree on boundaries and timing.
Map control-plane and workload boundaries
We review RBAC, service accounts, network policies, and admission controls to understand how access is intended to work.
Run controlled access-path checks
We validate whether low-privilege workloads can reach the API, secrets, nodes, or other namespaces without disrupting production.
Share evidence and retest criteria
We document what was tested, what held, and the specific changes needed, with simple retest steps.
What stays predictable
Related glossary terms
How cloud reviews validate IAM boundaries, storage exposure, and configuration risk.
Identity and access control risks that shape Kubernetes permissions.
How API testing confirms auth, data access, and abuse paths.
Evidence-based testing that validates real attack paths under scope.
Safe next step
See how Kubernetes testing is scoped,
without any pressure
If you are evaluating Kubernetes security, we can walk through scope, access boundaries, and the evidence a review would produce. If it is not the right fit, that is fine.
Explore Kubernetes testingor view a sample report first