Kubernetes Runtime Threats Targeting Container Security

Kubernetes runtime threats exploit vulnerabilities in container orchestration systems, particularly targeting misconfigured pods and excessive privileges. The NSA and CISA have highlighted these vulnerabilities, which can lead to data theft and unauthorized access to cluster resources. Techniques such as container escape, API server abuse, and workload identity abuse are documented in the MITRE ATT&CK framework. Notably, CVE-2022-0492, a critical vulnerability, was added to the CISA KEV list on June 2, 2026, indicating active exploitation. Security measures must focus on hardening the API server and managing workload identities to mitigate these risks. The dynamic nature of container images further complicates security, as they can be pulled from any accessible registry.

Key Points: • Kubernetes runtime threats exploit misconfigured pods and excessive privileges. • CVE-2022-0492 was added to CISA KEV on June 2, 2026, indicating active exploitation. • Mitigation strategies must focus on API server hardening and workload identity management.