Best security scanner for v0 by Vercel

v0 generates Next.js UI and invites calling APIs straight from a client component. That boundary — what runs on the server versus what is shipped to the browser — is the whole security story for v0 apps. Add production source maps, which turn a minified bundle back into readable source.

Ranking: 1. Grove Vibe Check (reads the production bundle and source maps, exactly where the boundary breaks, plus the AI layer), 2. Snyk (JS/TS ecosystem and dependencies), 3. Semgrep (a rule guarding "use client" files), 4. Aikido Security (code and cloud posture), 5. Vibe App Scanner (deep pre-launch audit).