Is Lovable safe to use?

Lovable the platform is a legitimate, well-funded product with real security controls on its own infrastructure. The catch is that the app Lovable generates for you can still ship insecurely - most commonly with its database left open because Row-Level Security was never configured. The platform being safe and your app being safe are two different questions, and the second one is on you.

What was the Lovable vulnerability that exposed 170+ apps?

In 2025, security researcher Matt Palmer scanned 1,645 Lovable-built apps and found 170 of them (about 10%) exposed their database because of missing or inadequate Row-Level Security. Because Lovable apps talk to a Supabase database directly from the browser using a public key, anyone could read names, emails, payment details, and even API keys. It was assigned CVE-2025-48757; Lovable disputes it, arguing the security of your app's data is the customer's responsibility.

Is Lovable's built-in security scan enough?

It helps, but it is not a guarantee. Lovable's scan checks whether a Row-Level Security policy exists on your tables - not whether that policy is actually correct. A green checkmark can sit on top of a policy that still lets the wrong people read the wrong rows. Treat it as a useful first pass, not proof that your app is safe.

How do I check if my Lovable app's database is exposed?

Open your Supabase dashboard and check the Table Editor: any table marked 'RLS disabled' is readable by anyone with your public key. For tables that do have RLS on, you still need to test the policies - log in as one user and confirm you cannot read another user's rows. If you are not sure how, that is exactly the kind of thing a human security review checks.

How much does it cost to security test a Lovable app?

A VibeSecurely human pentest of a single Lovable app starts at $499. A real security engineer attacks it the way an attacker would, finds the exposed data and broken access checks, and hands you a plain-English report with ranked fixes and a free re-test - the kind of evidence an enterprise buyer's security review asks for.

LovableVibe codingApp security

Is Lovable Secure? The Risks in Lovable-Built Apps (and How to Fix Them)

The VibeSecurely teamJune 22, 20268 min read

Lovable is one of the fastest ways on the internet to turn an idea into a working SaaS app. Describe what you want, and minutes later you have signups, a database, payments, and a live URL - no engineering team required. So it is a fair question to ask before you put real users behind it: is Lovable secure?

The honest answer has two halves, and keeping them apart is the whole point. Lovable the platform is a serious, well-funded product with real security controls on its own systems. But the app Lovable builds for you is a separate thing, and it can ship wide open even when the platform behind it is fine. The first half is Lovable's job. The second half - the one an enterprise buyer's security team will actually inspect - is yours.

The short answer

Lovable is secure enough as a platform. The apps it generates frequently are not - usually because the database is left readable by anyone. In 2025, a researcher scanned 1,645 Lovable-built apps and found roughly one in ten leaking data through a single misconfiguration. The good news: it is a known, fixable problem, and the rest of this guide walks through exactly what to check.

How Lovable actually builds your app

To see where the risk comes from, you have to know how a Lovable app is wired. When you add a backend, Lovable connects your app to Supabase - a hosted Postgres database with built-in auth, file storage, and serverless functions. Your app's front-end talks to that database directly from the browser, using a public "anon" key that ships inside your site's JavaScript.

That design is fine on purpose, but it rests on one assumption: that every table is protected by Row-Level Security (RLS), the database feature that decides which rows each user is allowed to see. With RLS configured correctly, the public key can only ever return the rows a given user owns. With RLS off, that same public key lets anyone query the table directly and read everything in it. The key is in the browser by design - so the database, not the app, is the thing that has to say no.

The flaw that exposed 170+ Lovable apps

This is not hypothetical. In 2025, security researcher Matt Palmer scanned 1,645 public Lovable apps and found that 170 of them - about 10% - were exposing their database through missing or inadequate RLS, across 303 vulnerable endpoints. The exposed data included names, emails, phone numbers, payment and subscription details, and live third-party API keys. The issue was published as CVE-2025-48757 and rated critical.

The mechanism is exactly the one above: the app fetches data straight from Supabase with the public key, and because no RLS policy stands in the way, an attacker just rewrites the request to pull every row of every table. No login, no exploit code, no skill required - it is readable in a browser. Security firm Superblocks documented the same pattern across the affected apps.

It is worth being fair here: Lovable disputes the CVE, on the grounds that the security of the data inside your app is the customer's responsibility, not the platform's. You can argue about where that line sits - but notice what the position means for you. Lovable is telling you, on the record, that locking down your app's data is your job.

The fix: In Supabase, enable Row-Level Security on every table, then add a policy for each that scopes rows to their owner - typically auth.uid() = user_id. A table with RLS off is fully public; a table with RLS on but no policy denies everyone. Our Supabase security checklist walks through each step.

Why "I ran Lovable's security scan" is not the same as secure

After these issues surfaced, Lovable added a built-in security scan that runs when you publish, plus a deeper on-demand check. It is a genuinely useful addition, and you should use it. But it has a limit worth understanding: the scan checks whether a Row-Level Security policy exists on your tables, not whether that policy is correct.

That gap matters. You can have RLS enabled, pass the scan with a green checkmark, and still ship a policy that lets any logged-in user read every other user's records. The scanner sees "a policy is present" and stops; it has no idea what your data is supposed to be private from. Treat the built-in scan as a smoke alarm, not a safety inspection. The only way to know your policies actually hold is to test them the way an attacker would.

The risks beyond the database

RLS is the headline, but it is not the whole story. A few other patterns show up again and again in AI-built apps, Lovable's included:

Leaked API keys and secrets. Ask Lovable to wire up Stripe or an AI API and the secret key can end up in your front-end code, where anyone can read it. Keep secrets server-side, in Supabase secrets and Edge Functions - never in the browser. More in our guide to API keys in vibe-coded apps.
Broken access control. In early 2026, a researcher found 16 vulnerabilities in a single Lovable-built app, exposing 18,697 user records tied to schools and universities - caused by authorization logic that was simply inverted, blocking the wrong people and letting the wrong people in. The Register reported the details.
Cross-site scripting and injection. AI models are notoriously bad at escaping user input. Veracode found AI-generated code failed to defend against XSS in 86% of tests.
Abuse of the builder itself. Guardio's VibeScamming research found Lovable was the most easily abused of the AI builders tested for spinning up convincing phishing pages - a reminder that "it will build whatever you ask" cuts both ways.

Whose job is security - Lovable's or yours?

It helps to draw the line clearly. Some problems are genuinely the platform's: in 2026, researchers reported a flaw in Lovable's own API that briefly let one free account reach other users' source code and database credentials. That class of bug is on Lovable to fix.

But the flaw that exposes most real user data - the open database - is a configuration in your project, and it is the one an enterprise security reviewer will pin on you. When a customer's security team finds your tables are world-readable, "the platform should have stopped me" is not an answer that closes the deal. This is the same wall every founder hits when they try to pass an enterprise security review.

Lock down your Lovable app: the checklist

Before you put a paying customer behind your app, run through this:

Row-Level Security is enabled on every table, with an explicit policy on each.
You have tested those policies - logged in as one user and confirmed you cannot read another user's rows.
No API keys or secrets live in front-end code; they sit in server-side secrets and Edge Functions.
Authorization is enforced on the server for every read, update, and delete - not by hiding buttons in the UI.
Email confirmation is back on for production, and login has rate limiting.
User-generated content is escaped, and you have basic security headers in place.
You have re-run Lovable's scan after your last change to auth or your schema.
A human - not just a scanner - has tried to break it.

How AI-built code does in general

None of this is unique to Lovable; it is the nature of building with AI. Veracode's 2025 analysis of more than 100 models found that 45% of AI-generated code introduced an OWASP Top 10 vulnerability, a rate that has not improved as models get bigger. AI optimizes for code that works, not code that is safe. The speed is real and worth having - it just means the security check has to be a deliberate step, because nothing in the workflow does it for you.

The bottom line

So, is Lovable secure? The platform is reasonable. The app it hands you is only as secure as the configuration you never saw - and by default, that configuration can leave your database open. The fixes above are well understood and usually take days, not weeks. Run the checklist, test your policies, and get someone to pressure-test it before launch.

A real, human penetration test of your Lovable app starts at $499. A security engineer finds the exposed data and broken access checks, then hands you a report that clears your enterprise buyer's security review. Get a pentest, or see a sample report first.

Frequently asked questions

Is Lovable safe to use?: Lovable the platform is a legitimate, well-funded product with real security controls on its own infrastructure. The catch is that the app Lovable generates for you can still ship insecurely - most commonly with its database left open because Row-Level Security was never configured. The platform being safe and your app being safe are two different questions, and the second one is on you.
What was the Lovable vulnerability that exposed 170+ apps?: In 2025, security researcher Matt Palmer scanned 1,645 Lovable-built apps and found 170 of them (about 10%) exposed their database because of missing or inadequate Row-Level Security. Because Lovable apps talk to a Supabase database directly from the browser using a public key, anyone could read names, emails, payment details, and even API keys. It was assigned CVE-2025-48757; Lovable disputes it, arguing the security of your app's data is the customer's responsibility.
Is Lovable's built-in security scan enough?: It helps, but it is not a guarantee. Lovable's scan checks whether a Row-Level Security policy exists on your tables - not whether that policy is actually correct. A green checkmark can sit on top of a policy that still lets the wrong people read the wrong rows. Treat it as a useful first pass, not proof that your app is safe.
How do I check if my Lovable app's database is exposed?: Open your Supabase dashboard and check the Table Editor: any table marked 'RLS disabled' is readable by anyone with your public key. For tables that do have RLS on, you still need to test the policies - log in as one user and confirm you cannot read another user's rows. If you are not sure how, that is exactly the kind of thing a human security review checks.
How much does it cost to security test a Lovable app?: A VibeSecurely human pentest of a single Lovable app starts at $499. A real security engineer attacks it the way an attacker would, finds the exposed data and broken access checks, and hands you a plain-English report with ranked fixes and a free re-test - the kind of evidence an enterprise buyer's security review asks for.