Fix Your AI-Built Supabase Storage Integration
File storage built into Supabase with RLS-based access control. AI tools skip storage policies, misconfigure bucket visibility, and miss RLS on storage objects.
Common Supabase Storage issues we find
Problems specific to AI-generated Supabase Storage integrations.
Storage bucket created without RLS policies
AI-generated code creates storage buckets but doesn't add Row Level Security policies, making files either inaccessible or accessible to everyone depending on the bucket's public setting.
Public bucket used for private user files
Generated code creates a public bucket for user uploads (like profile pictures), making every uploaded file accessible to anyone who guesses the URL.
File path not scoped to user ID
AI tools upload files to generic paths like 'uploads/filename.jpg' instead of 'uploads/{user_id}/filename.jpg', making it impossible to write effective RLS policies.
Missing file type validation before upload
Generated code uploads any file the user selects without validating the MIME type, allowing executable files or oversized files to be stored.
Signed URLs generated with excessive expiry times
AI tools create signed URLs with 7-day or unlimited expiry periods for sensitive files, when most use cases only need 5-60 minute access windows.
Start with a self-serve audit
Get a professional review of your Supabase Storage integration at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Why can all users see each other's uploaded files?
AI tools typically create public buckets or skip storage RLS policies. You need a private bucket with RLS policies that scope access by auth.uid(), and file paths must include the user ID for the policies to work. We audit and fix your entire storage security setup.
How do I configure Supabase Storage policies correctly?
Storage policies work like database RLS policies but operate on the storage.objects table. You need separate policies for SELECT (viewing), INSERT (uploading), UPDATE, and DELETE operations, each scoped to the authenticated user's files. AI tools rarely create all four.
Why are my Supabase Storage uploads failing with 403 errors?
This means your RLS policies are either missing or incorrectly configured. Common AI mistakes include writing policies for the wrong bucket name, not matching the upload file path format, or using the anon key when the service role key is needed.
Related resources
Other Integrations
Need help with your Supabase Storage integration?
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