Rescue a broken Lovable app
To rescue a broken Lovable app, work in this order. First, check row-level security on every Supabase table: where it is off, or a policy lets every request through, the public key in your front-end code can read, and sometimes change or delete, your data. Second, rotate any secret key that reached the client bundle and move it server-side. Third, if sign-in fails on your own domain, fix the auth Site URL and redirect URLs. Fourth, fix the root cause of any bug the AI keeps bringing back. Last, harden the app in place or move it to a codebase you own. A Rapid Diagnostic is $1,500, delivered async in days and credited toward the full audit.
Not ready to send it? Check your Supabase tables for free or read how the Supabase exposure gets fixed.
What breaks in a Lovable app, and how do you check each one?
Six things to check, each with a check you can run on your own app.
Row-level security off, or a policy that lets everyone in
The public anon key sits in your front-end code, and Supabase's API serves any table the anon role has been granted to anyone holding it. With row-level security off, or a policy that passes every request, that key can read any row. Turning RLS on with no policy blocks your own app's reads, so every table needs a policy for exactly what each role should reach. In Symbiotic Security's scan of 1,072 Supabase-backed apps built on Lovable, v0, Bolt.new, Replit and Windsurf (2 June 2026), broken or missing access control was the most common critical finding.
Check: run the free Supabase exposure check, or follow the Supabase security fix.
Secret keys in the client bundle
A Stripe secret key, a Supabase service_role or sb_secret_ key, or a model API key in browser code gives anyone who opens developer tools the same power your server has. A leaked key stays usable until it is rotated, so moving it is not enough.
Check: search the built JavaScript for sk_live_, sb_secret_ and any key whose role is service_role, as in the guide to finding an exposed secret key.
Sign-in works in the preview, breaks on your domain
Supabase Auth only sends people back to addresses it has been told about. If the Site URL still points at the preview, or your custom domain is missing from the redirect URLs, sign-in links and social logins land in the wrong place or fail.
Check: on your own Supabase project, Authentication, then URL Configuration. On Lovable Cloud, Lovable manages the backend, so check Lovable's current documentation for where these settings live.
Edge Functions that never check who is calling
A Supabase Edge Function that holds the service-role key will do privileged work for anyone who can reach its URL unless it confirms the caller first. The default JWT check is not that confirmation: a request carrying only the public key passes it.
Check: before a function creates its service-role client, it should call getUser on the request's Authorization header, refuse when no user comes back, then check that user may touch that row.
The credit-burn fix-loop
You describe a bug, Lovable patches the symptom, a new bug appears, you describe that, and the cycle repeats, spending credits without ever reaching the root cause.
Check: if the same bug has come back after two fixes, stop prompting and read the code path behind it, or have someone read it for you.
Platform risk, not only app risk
Lovable's own incident report (22 April 2026) says that between 3 February and 20 April 2026, public project chat history and source code could potentially be accessed by any Lovable user who had a project link. It says private projects and Lovable Cloud were never impacted, and that a fix shipped within two hours of a researcher's public report.
Check: if your project was public in that window, treat any key that ever appeared in its code or chat as exposed, and rotate it.
How do you fix a broken Lovable app?
We work in the order that stops the bleeding fastest, then move to what makes the app durable.
1. Audit every Supabase policy
We list every table your Lovable app can reach and check its row-level-security rules against what the public anon key should actually be allowed to do.
2. Rotate what's exposed
Any key or secret that shouldn't be public gets rotated and moved server-side, immediately, before anything else.
3. Fix sign-in on your live domain
We line up the auth Site URL, the redirect URLs and every sign-in method with the domain your users actually visit, then test each one there.
4. Fix root causes, not symptoms
We read the actual code behind the recurring bug and fix it directly, so it stops reappearing every time you touch a related feature.
5. Decide: harden in place, or migrate
If Lovable still fits your needs, we harden and document what's there. If you've outgrown it, we migrate your schema and business logic into a standard codebase you fully control. Lovable's GitHub sync carries the code, including the database migration files and the Edge Function source, but not your data: table records, user accounts and storage files move separately, and Edge Functions are redeployed with their secrets set again.
What each step of a Lovable app rescue costs
Engagements start with the $1,500 Rapid Diagnostic, then move to the diagnostic audit, rescue and harden, or a migration as needed. Past the diagnostic, every engagement is fixed scope and fixed price, agreed in writing before build work starts. Full pricing.
Automated scan and a written report, delivered async, in days. Credited toward the full audit.
Fixed fee. A security scorecard, an architecture review and a prioritized findings list.
A wide band, scope dependent. Critical and high findings remediated, auth, secrets and data integrity fixed, test coverage on critical paths, and a documented handoff.
Export your schema and logic into a standard codebase, and take over as your engineering team.
Talk to usLovable rescue questions
Is my Lovable app's Supabase database actually exposed?
If row-level security is disabled or misconfigured on any table, yes: anyone with your public anon key, which is visible in your site's own JavaScript, can read and sometimes delete that table's data. In Symbiotic Security's scan of 1,072 Supabase-backed vibe-coded apps (2 June 2026), broken or missing access control like this was the most common critical finding.
Was there really a Lovable security incident?
Yes. Lovable's own incident report (22 April 2026) says that between 3 February and 20 April 2026, public project chat history and source code could potentially be accessed by any Lovable user who had a project link. It says private projects and Lovable Cloud were never impacted, and that a fix shipped within two hours of a researcher's public report.
Why does Lovable's AI keep reintroducing the same bug?
When you ask Lovable to fix a bug by prompting again, it sometimes patches the symptom without understanding the underlying cause, which can reintroduce the original bug or create a new one, burning credits in a loop. A human engineer fixing the root cause breaks that loop.
Can I keep using Lovable after you fix my app?
Yes, for smaller apps we can hand back a hardened version that still lives in Lovable. For apps that have outgrown the platform, we migrate you to a standard codebase you own outright.
How fast can you check if I'm exposed?
You can check one thing yourself right now: the free Supabase exposure check tests whether an anonymous visitor can read your tables. The Rapid Diagnostic is delivered async, in days. If you think you're actively exposed, say so when you reach out and we'll prioritize it.
Related reading
Send us your Lovable project. We'll tell you the truth about it.
A senior engineer checks your actual Supabase policies and code, no sales engineer, no junior.