Comprehensive Security Vulnerability Discovery Pipeline

Design a multi-layered Bash security scanning framework that integrates various open-source and commercial security tools to perform holistic vulnerability assessments across codebases, container images, and network configurations. The script should support automatic scanning of Git repositories, Docker registries, and Kubernetes clusters, generating aggregated threat reports with severity rankings, CVE cross-referencing, and remediation recommendations. Include support for custom plugin extensions and compliance framework mappings.