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I will fix lovable supabase rls data leak auth permissions react app android app nodejs
Mary Bolt
About this gig
fix lovable supabase rls data leaks auth permissions react js app ios android app nodejs
Your Lovable app looks ready to launch, but are you sure one user cannot access another user's private records?
A working login screen does not mean your Supabase database permissions are correct. Missing Row Level Security policies, excessive database grants or exposed secrets can put customer information at risk.
I inspect your existing application and Supabase configuration, reproduce the affected authorization problem using authorized test accounts, and repair the agreed issue.
WHAT I HANDLE:
- Lovable, Bolt, React and Next.js projects
- Supabase Auth and PostgreSQL
- Row Level Security (RLS) policies
- Anonymous and authenticated access checks
- Cross-user data isolation
- SELECT, INSERT, UPDATE and DELETE permissions
- Storage bucket authorization
- Service-role key exposure checks
- SQL migrations and database tests
- TypeScript frontend integration
- Regression testing and deployment checks
- Security findings
- Lovable to ios testflight
I verify that authorized users retain the access they need while unauthorized requests are denied.
CONTACT ME NOW!!!
Get to know Mary Bolt
Mary Bolt
Unity Game Developer, Multiplayer Game, VR Game, Mobile App, iOS, Android
- FromUnited States
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English, French, Spanish
I’m Mary, a Full Stack & Game Developer helping startups, businesses, and creators build, fix, and launch digital products. I specialize in Unity games, online games, arcade games, multiplayer games, VR games, HTML5, JavaScript, Phaser.js, WebGL, Three.js, React Native, Flutter, iOS and Android mobile apps. I build game systems, multiplayer features, mobile apps, APIs, backend systems, Firebase and Supabase integrations, UI, authentication, payments, and cross-platform experiences from idea to production.
FAQ
Can you fix Supabase RLS policy errors in my Lovable app?
Yes. I investigate Supabase Row Level Security errors that prevent legitimate users from viewing, inserting, updating or deleting their own records. I review the affected PostgreSQL tables, role grants, RLS policy expressions and application requests.
How can you tell whether users can access another person's private data?
I review the intended access rules and test them using separate authorized test accounts. For example, one test account should be able to view its own private records but not another account's records. I also review relevant anonymous access, database grants, storage permissions and API behavior.
Can you fix Supabase authentication, signup and login issues in Lovable?
Yes. I work with Supabase Auth in Lovable, React, Next.js and TypeScript applications. Common issues include broken signup, missing user profiles, login redirects, expired sessions, OAuth callback configuration and dashboards that fail to load after authentication.
My Supabase database has RLS enabled. Why can users still see the wrong data?
Enabling RLS and writing correct authorization policies are different steps. An overly permissive SELECT policy or unintended database grant can expose records that should be private. Views and privileged backend functions also require attention.
Can you fix Supabase error 42501 or the message "new row violates row-level security policy"?
Yes. PostgreSQL error 42501 often relates to insufficient permissions or an RLS policy check, but the correct fix depends on the request. An INSERT may also interact with SELECT permissions when the application requests returned rows.
Do you work with React, Next.js, Node.js, Base44 and Bolt applications?
Yes. I can investigate Supabase-related authentication and authorization issues in applications built with Lovable, Bolt, React, Next.js, Node.js & similar tools. Depending on the project, I may need to update frontend TypeScript, API routes, Express or Node.js backend logic, Supabase Edge Function.
Can you fix Supabase permissions for an Android or React Native Expo app?
Yes, when the Android or React Native Expo application uses Supabase for its backend, I can investigate shared authentication, database permissions, session handling and access rules. These problems may exist on the backend regardless of whether the client is a web app or mobile app.
Can you check exposed service-role keys and insecure Supabase API routes?
Yes. I can review an authorized application for exposed privileged credentials, incorrect use of server-side keys, and backend routes that are missing necessary authorization checks. A normal Supabase publishable key is intended for client use, but secret or service-role credentials must stay hidden
Will fixing RLS break my dashboard, forms or existing user accounts?
Incorrect changes can block legitimate access, which is why I don't apply restrictive policies blindly. I review which users and roles should be able to perform each operation, test the changes in a staging environment where possible, and verify affected frontend workflows.
What will I receive, and can you guarantee my Lovable app is fully secure?
You'll receive the agreed corrected SQL policies or source files, testing evidence and an explanation of what changed. Depending on the package, I can also include migration scripts, access-test cases and deployment notes. I can verify the specific authorization behavior included in the order
