Security Tool Convergence Exposes Critical Vulnerabilities in Express.js

Multiple security tools analyzing code from different layers—threat intelligence, code patterns, best practices, and project structure—create mutual validation rather than isolated alerts. Applied to Express.js, the most-depended-upon Node.js web framework with 30 million weekly downloads, this four-layer approach uncovered six known CVEs within 15 minutes, with discoveries matching real issues already filed on GitHub. This validates that comprehensive security requires convergent evidence from multiple analysis angles.