What Is Lovable?
An AI-powered full-stack application builder that generates complete web applications from natural language descriptions. Lovable creates React frontends with Supabase backends, handling UI, database schema, authentication, and deployment in a single workflow.
Security Risks
Lovable generates entire applications, amplifying security risks across the full stack:
- Supabase RLS bypass: Row Level Security policies are frequently missing or misconfigured
- Client-side secrets: Supabase anon key exposed in frontend code (by design, but RLS must be configured)
- Missing authorization: API endpoints accessible without proper permission checks
- Default configurations: Supabase tables often have public read/write access
- No rate limiting: APIs vulnerable to brute force and denial of service
- Weak authentication flows: Password reset and email verification with security gaps
- Frontend-only validation: No server-side input validation
Security Checklist
- Enable and verify Row Level Security (RLS) on ALL Supabase tables
- Test RLS policies by attempting cross-user data access
- Verify that Supabase service role key is never exposed to the client
- Add server-side validation for all user inputs via Edge Functions
- Implement rate limiting on authentication and sensitive endpoints
- Check that password reset flow cannot be exploited for account enumeration
- Remove any default admin accounts or test data
- Verify that file uploads are restricted by type and size
- Add security headers to the deployment configuration
- Run Vibe Eval or similar scanner before launching
Frequently Asked Questions
Is Lovable safe for production apps?
Lovable can produce production-ready apps but requires significant security hardening, especially around Supabase RLS policies. The generated UI and basic functionality are solid, but access control, input validation, and security configurations need manual review and testing before launch.
How do I secure Supabase in a Lovable app?
Enable RLS on every table and write policies that restrict access to the authenticated user’s own data. Test policies by trying to access other users’ data through the API. Use Supabase Edge Functions for server-side validation. Never use the service role key in client-side code.
Should I deploy a Lovable app directly?
Deploy to a staging environment first. Run security scans, test all authentication flows, verify RLS policies, and check for exposed secrets. Only deploy to production after addressing all critical and high severity findings. Consider migrating to Vercel for better production infrastructure.