Bolt.new + Supabase Security
Bolt.new makes it easy to add Supabase to your project. But the AI-generated integration often skips critical security configurations like RLS policies.
Why Bolt + Supabase?
Bolt.new's one-click Supabase integration is popular for quickly adding authentication and database features. The speed of setup means security is often an afterthought.
Common Vulnerabilities
These are the security issues we find most often in Bolt apps using Supabase.
No RLS on Quick-Created Tables
Tables created through Bolt's AI assistant typically lack Row Level Security, exposing all data to anyone.
Hardcoded Supabase Credentials
AI may place Supabase URL and keys directly in source files instead of environment variables.
Missing Auth Checks in Queries
Generated code may query data without verifying the user is authenticated or authorized.
Public Storage Buckets
Supabase Storage buckets created by Bolt may allow public read/write access.
What We Check for Bolt + Supabase
RLS Verification
Test all tables for proper Row Level Security configuration.
Credential Exposure
Scan for hardcoded Supabase URLs and keys in source code.
Storage Security
Check Storage bucket policies for overly permissive access.
Query Authorization
Analyze data fetching patterns for missing auth checks.
Quick Security Wins
Apply these fixes right now to improve your security.
Enable RLS on all tables immediatelyMove Supabase credentials to .env fileAdd auth.uid() checks to all RLS policiesSet Storage bucket policies to require authenticationUse supabase.auth.getUser() before data operationsThe Bottom Line
Bolt.new + Supabase is great for prototypes, but needs security hardening before production. Focus on RLS policies and credential management.
Secure Your Bolt + Supabase App
Find Row Level Security misconfigurations, exposed credentials, and other vulnerabilities before attackers do.
Start Security ScanFrequently Asked Questions
Does Bolt.new automatically set up Supabase RLS?
No, Bolt.new's AI creates functional database tables but typically doesn't configure Row Level Security. The AI prioritizes getting features working quickly, which means RLS policies must be added manually before production deployment.
Where should I store Supabase credentials in a Bolt.new project?
Store Supabase URL and anon key in a .env file, not in source code. In Bolt.new, you can use environment variables that the framework will load. Never commit .env files to version control - use .env.example for documentation instead.
Is it safe to deploy a Bolt.new + Supabase app to production?
Only after security hardening. Before production: 1) Enable RLS on all tables, 2) Write proper security policies, 3) Move credentials to environment variables, 4) Configure Storage bucket policies, 5) Run a security scan. Bolt.new prototypes need these steps before handling real user data.
How do I secure Supabase Storage buckets created by Bolt.new?
Go to Storage in your Supabase dashboard, select each bucket, and review the policies. Bolt.new may create public buckets for simplicity. Update policies to require authentication: use storage.foldername() to restrict access to user-specific folders, or require auth for all operations.