My Lovable app's Supabase tables are exposed
If row-level security is disabled or misconfigured on any Supabase table your Lovable app uses, anyone with your public anon key, which is visible in your site's own JavaScript, can read that table, and sometimes delete rows, without ever logging in. This is not a rare edge case: an independent 2026 scan of 1,072 Supabase-backed vibe-coded apps found 98% had at least one security issue and 16% had a critical one. We check every table, write and test the correct RLS policies, rotate anything that leaked, and confirm the fix with a real anonymous request, not just a code review. Rapid Diagnostic from $1,500. Fixed-fee audit from $7,500 if you go ahead.
How do I check if I'm exposed right now?
You can get a rough answer yourself in under five minutes, before an engineer ever looks at it.
Find your anon key
Open dev tools on your live site, go to the Network tab, and look for requests to *.supabase.co. The apikey header is your public anon key.
Query a table directly
From a logged-out session, hit your-project.supabase.co/rest/v1/your_table with that key. If you get real rows back, RLS isn't blocking you.
Check the dashboard
In Supabase, open Authentication → Policies for each table. If RLS shows as disabled, or there's no policy limiting the read, you're exposed.
Why does Lovable leave this open in the first place?
Lovable wires your app to Supabase automatically, which is convenient, but it doesn't automatically turn on and correctly configure row-level security for every table you create afterward.
The anon key is meant to be public
Supabase's model assumes the anon key will be visible to everyone, and expects RLS policies to be the actual security boundary. If policies aren't written, the "public" key becomes a master key.
New tables don't inherit protection
Every new table you or Lovable's AI creates needs its own RLS policy. It's easy for one table added later in the project to get missed entirely.
How do you lock it down?
We fix the actual access boundary, then prove it with a real request, not a checklist.
1. Pull your anon key and test it directly
Open your site, find the public anon key in the network requests or client bundle, and use it to query your own tables from a fresh, logged-out session.
2. Check row-level security on every table
In the Supabase dashboard, check whether RLS is enabled on each table, and if it is, whether the policies actually restrict reads and writes to the right user.
3. Write and test real policies
We write row-level-security policies that match your actual access rules, then test them with real anonymous and authenticated requests, not just review them by eye.
4. Rotate anything that leaked
Any service-role key or secret found in client-side code gets rotated and moved server-side immediately.
What does this fix cost?
Most Supabase security fixes are fast, fixed-fee engagements.
Every table checked, every policy tested, every exposed key rotated. Fixed fee, usually same-week.
If the audit finds broader issues, close everything and get to a fully hardened, production-ready app.
Supabase security questions
How do I check if my Lovable app's Supabase database is exposed?
Open your browser's developer tools on your live site, find the Supabase anon key in a network request, then use a tool like curl or Postman to query one of your tables directly with that key from a logged-out state. If you get data back that a stranger shouldn't see, row-level security isn't protecting that table.
What is row-level security and why does it matter?
Row-level security, or RLS, is a Postgres feature Supabase uses to control which rows a given request is allowed to read or write. Without it enabled and configured, the public anon key your app ships to every browser can potentially read or delete any row in that table.
How common is this specific issue?
Very. An independent 2026 scan of 1,072 Supabase-backed vibe-coded apps found that 98% had at least one security issue, and 16% had a critical flaw, with disabled or misconfigured row-level security among the most common findings.
Can this be fixed without taking my app offline?
Yes, in almost every case we write and test the correct RLS policies and roll them out without downtime. The check itself is read-only and non-disruptive.
What if my anon key or a secret key already leaked publicly?
We rotate it immediately as the first step, before anything else, then close the underlying gap so a new key isn't exposed the same way.
How fast can you fix this?
A focused RLS and secrets audit is usually same-week. If you believe you're actively exposed right now, tell us that when you reach out and we prioritize it as an emergency.
Related reading
Find out if you're exposed. It takes days, not weeks.
A senior engineer checks your actual Supabase policies and gives you a straight answer.