Is Lovable secure? Mostly yes. Is your Lovable app secure? Let's check.

Two different questions hiding in one search

"Is Lovable secure?" means two things. The first is about Lovable as a company: is my account safe, is my code safe on their servers, are they going to get breached. The second is about the thing you made: can strangers read my database, can someone run up my OpenAI bill. Lovable can answer the first. Only you, or a scan of your app, can answer the second.

This post is about the second question, because that is where the problems actually are. When security researchers publish findings about Lovable apps with readable databases, the hole is in the apps, not in Lovable. The same holes appear in apps from Replit, Bolt and v0, for the same reasons.

What Lovable handles for you

• HTTPS on every lovable.app address, with a valid certificate you never have to think about. Custom domains get certificates through Lovable too.
• Hosting and the build. You cannot misconfigure a server you do not have.
• Supabase integration that puts the right public key in the right place by default. The anon key in the browser is correct, as long as the database rules behind it are right.
• A built-in security review that looks at your project from inside Lovable while you build. Use it. It catches a good share of the issues below before you publish.
• Their own security program: a security page, a trust center and a way to report vulnerabilities. If you are evaluating Lovable for a company, that is where your compliance questions (SOC 2, DPA) go.

None of that stops the app you describe from having a leak, because the leak is in what the app does, not in where it runs.

The four ways Lovable apps leak

Lovable apps share a stack: React with Vite in the browser, Supabase (or Lovable Cloud, which runs on Supabase) behind it, and a GitHub repo kept in sync. Each layer has one characteristic mistake.

1. Secret keys in VITE_ variables or pasted into components

Vite copies every variable starting with VITE_ into the JavaScript bundle. That bundle is downloaded by every visitor. So a VITE_OPENAI_API_KEY, or a key pasted into a component to "just make it work", is public the moment you publish. Anyone can lift it and spend on your account.

Where a secret belongs in a Lovable app: in a Supabase Edge Function's secrets, with the front end calling the function. Lovable can do this in one prompt.

2. The service_role key in the browser

Supabase gives you two keys. The anon key is meant to be public and is limited by Row Level Security. The service_role key skips RLS entirely and is for servers only. When a feature (usually an admin page) fails because of RLS, a builder sometimes reaches for the service_role key in the front end to make the error go away. The error goes away. So does every protection on your data.

3. Tables created without Row Level Security

Every time you describe a feature that needs data, Lovable creates a table and writes a migration into your repo. Lovable is good about enabling RLS on new tables, but not perfect, and a table that gets RLS without any policies, or with a using (true) policy, is just as open. This is the most common serious finding in Lovable apps. It is covered in depth in Supabase RLS in Lovable apps.

4. Whatever GitHub sync just pushed

Lovable pushes every change to your GitHub repo. That is a feature. It also means a key pasted into a file is now in a repo, in its history, and in the clone of anyone you have given access. If the repo is public, it is everywhere. Rotation is the only fix; deleting the file afterwards does not remove the old commit.

How to check your Lovable app in five minutes

1. Open the published app, press F12, open the Network tab and reload. Click the largest .js file under /assets/. Search it for sk-, service_role, sb_secret, re_ and secret. Anything that looks like a key, except the Supabase anon key, is a leak.
2. In Lovable's code view, search for dangerouslyAllowBrowser. If it is there, your AI key is in the browser.
3. In the Supabase dashboard, open the SQL editor and run the two queries below. The first lists tables without RLS. The second lists policies that let everyone in.
4. Open the GitHub repo and look for a committed .env file.
5. Run Lovable's built-in security review and read what it says, then compare with what you found from the outside.

-- tables anyone with the anon key can read and write
select tablename from pg_tables
where schemaname = 'public' and rowsecurity = false;

-- policies that pass for everybody
select tablename, policyname, cmd
from pg_policies
where schemaname = 'public' and (qual = 'true' or with_check = 'true');

The fix is a Lovable prompt

You built the app by describing it. You fix it the same way. The prompt below is the one for the most common finding, a table without RLS. The important part is telling Lovable exactly which table and exactly who should be allowed to do what.

Lovable's security review versus an outside scan

Use both. They look at different things.

"Lovable security issues" and "Lovable security breach": what people mean

Those searches mostly lead to the same place: write-ups of Lovable-built apps whose Supabase tables were readable by anyone. They are real, and they are app-level problems, the kind in the list above. There is no reason to think your account or your source code on Lovable is at risk because another founder shipped a table without RLS. There is every reason to check whether you did too.

Questions people ask