Introducing deepsec: The security harness for finding vulnerabilities in your codebase

Deepsec is a security tool introduced by Vercel designed to identify and help remediate vulnerabilities within codebases. The tool functions as a security harness that automates vulnerability detection across projects, enabling developers to find and fix security issues proactively. It integrates with development workflows to improve overall code security posture.

Source: Vercel Blog | 2026-05-04