HOW SECURE IS BOLT.NEW? (C+)

Rating: C+

Bolt.new is safe as a platform. The score drops because the generated code consistently ships with hardcoded API keys, open endpoints, and no server-side validation — the same pattern across every Bolt project we scan.

Top failure modes

1. Hardcoded API keys in frontend — OpenAI, Anthropic, Stripe keys committed directly into the client bundle.

2. No server-side paid-feature gates — Stripe checks live in the React component; the underlying API endpoint has no enforcement.

3. Open Supabase/Firebase integrations — Backend defaults to permissive rules; Bolt does not prompt for RLS or Firebase Security Rules on setup.

How to make Bolt.new safer

1. Treat the defaults as a starting point, not a secure configuration.
2. Audit each failure mode above against your specific deployment.
3. Run an automated scan against the deployed app — UI signals rarely surface the backend issues.
4. Re-scan after every material change (new table, new Edge Function, new env var).

For the full analysis of Bolt.new’s platform, defaults, and the failure modes we find on real deployments, see Is Bolt.new Safe?.

Related

• Bolt vs Lovable Security
• Bolt Security Scanner

FAQ

Is Bolt.new safe to deploy to production?

The platform itself is safe — the deployed infrastructure, hosting, and build pipeline. The generated code typically requires manual security review before production, specifically for credential handling and auth enforcement.

What’s the biggest security risk with Bolt.new apps?

Hardcoded API keys in the frontend bundle. Users can extract them from DevTools and rack up charges against your account.

Is Bolt.new more or less secure than Lovable?

Comparable defaults. Lovable leans Supabase-heavy; Bolt is more mix-and-match across backends. Both produce apps that need the same post-generation audit.