Last updated: January 12, 2026
Lovable makes building apps fast, but security requires attention. This guide walks you through securing your Lovable app before launch, focusing on the most common vulnerabilities we find in Lovable-built applications.
Most Lovable apps use Supabase. Without RLS, anyone can read your entire database. Go to Supabase dashboard > Authentication > Policies and enable RLS on every table.
ALTER TABLE your_table ENABLE ROW LEVEL SECURITY;After enabling RLS, create policies that restrict access. Users should only access their own data.
CREATE POLICY "Users can view own data" ON your_table
FOR SELECT TO authenticated
USING ((select auth.uid()) = user_id);Check your code for exposed API keys. OpenAI, Stripe, and other secrets should never be in frontend code. Use Supabase Edge Functions or server-side routes.
Add security headers to protect against XSS, clickjacking, and other attacks. Configure these in your hosting platform (Vercel, Netlify, etc).
Enable email verification, add password requirements, and consider rate limiting on auth endpoints.
Use VAS to automatically scan your deployed app for vulnerabilities. We check RLS, exposed secrets, headers, and more.
Avoid these common Lovable security pitfalls:
Use these tools to maintain security throughout development:
Security is an ongoing process, not a one-time checklist. After implementing these steps, use VAS to verify your Lovable app is secure before launch, and consider regular scans as you add new features.
No. Lovable creates Supabase tables without RLS enabled by default. You must manually enable RLS and write policies in the Supabase dashboard. Lovable's built-in 'Security Scan' feature can alert you to missing RLS configurations.
Check your Supabase dashboard for database keys (Settings > API). Search your Lovable codebase for hardcoded keys using Ctrl+F for patterns like 'sk-', 'OPENAI', or 'apiKey'. Environment variables should be set in Supabase Edge Functions or your deployment platform.
In Supabase SQL Editor, run a SELECT query without authenticating (use the anon key). If you can see data you shouldn't, RLS isn't configured correctly. VAS can automate this testing by querying your tables with the public anon key.
Yes, but you must review the generated code for security issues. Lovable prioritizes speed over security - treat it as a prototype that needs security hardening. The CVE-2025-48757 incident showed that 170+ Lovable apps were vulnerable due to missing RLS.