Bolt.new generates impressive code quickly, but speed comes with trade-offs. AI-generated applications often lack proper security controls: missing authentication checks, exposed API keys, client-side secrets, and vulnerable database queries. For a SaaS product handling user data or payments, these issues are critical. This post covers the security risks in Bolt.new code and how specialists fix them.
Common security issues in Bolt.new generated code
- Missing Row Level Security (RLS) policies in Supabase — any user can read any data
- API keys and secrets hardcoded in client-side code
- No input validation — SQL injection and XSS vulnerabilities
- Authentication checks missing on protected routes
- Sensitive data logged to browser console
- No rate limiting on API endpoints
- Insecure file upload handling
- Missing CSRF protection on forms
The security audit process for Bolt.new apps
A professional security audit follows this sequence:
- Automated scanning: tools that check for common vulnerabilities
- Manual code review: line-by-line examination of auth, API calls, data handling
- Database policy audit: verifying RLS policies cover all tables and operations
- Penetration testing: attempting to access data as an unauthorised user
- Dependency check: verifying all packages are up-to-date and secure
- Fix implementation: patching vulnerabilities with proper patterns
- Re-testing: confirming fixes work and haven't introduced new issues
When you need a security specialist
You need professional security help when: your app handles payments (Stripe integration requires PCI compliance considerations), you store personal data (GDPR implications), you're going live with paying users, investors or partners are asking about security practices, or you've already had a security incident or near-miss.
Cost of Bolt.new security auditing
Security audit and hardening for a Bolt.new SaaS MVP typically costs £2,000–£6,000 depending on complexity. This includes: comprehensive vulnerability scan, manual code review, RLS policy implementation, input validation and sanitization, secure deployment configuration, and documentation of security measures for stakeholders.
Frequently asked questions
- Is Bolt.new code inherently insecure?
- Not inherently, but AI-generated code often lacks security considerations by default. It generates what you ask for — if you don't specify security requirements, they may be missing. A security audit catches these gaps before they become problems.
- Can I do a security audit myself on my Bolt.new app?
- You can check for obvious issues (exposed API keys, missing auth checks), but a professional audit uses tools and expertise that catch subtle vulnerabilities. For any app handling real user data or payments, professional review is recommended.