TL;DR: Lovable turns a text prompt into a working app in minutes. It wires up a Supabase backend for you along the way. It does not lock that backend down. Row Level Security often stays off. API keys often end up in the public bundle. Rate limits are rarely added. A Lovable security audit checks the app you shipped. It does not check the prompt you typed. This guide covers what to check. It also shows how to scan your live URL free in about 30 seconds.
Lovable is one of the most widely used AI app builders. You describe an app in plain English. Lovable writes the code, creates a Supabase project behind it, and deploys the result. That speed is the whole appeal.
The apps it produces often take payments and store user data. Many sit on the open internet within the hour. Most have never had a security check. The only person who ever looked is the one who built them.
Want the fast answer for your own app? Run the free scan on your live URL first. No code access. No install. Then read on.
Want the full checklist and a structured walkthrough instead? See our Lovable App Security Audit page.
Already know you have gaps? Skip ahead to the 8-step fix for securing a Lovable app.
Is Lovable Safe? The Tool Is Fine. The App You Ship Is the Question.?
Launch Ready Code benchmark: across the 700+ apps we've scanned, the average Launch Readiness Score is ~44/100 — most ship with at least one critical finding. — LRC scan data, 2026
Launch Ready Code has scanned 700+ applications. Most ship with at least one critical finding, and the average Launch Readiness Score is ~44 out of 100 — LRC scan data, 2026.
Start with the honest answer. Lovable itself has no critical CVE on record tied to the platform. The tool is not the problem.
The problem is what ships by default. Lovable optimizes for one thing first: a working demo. Ask it for a feature. It builds the shortest path to that feature working on screen. A working demo tells you nothing about what a stranger can see. Open the browser's dev tools, and a lot is visible.
Lovable's default stack makes this concrete. Most Lovable apps run on Supabase for the database and auth. Supabase is a strong choice. But Lovable creates the project. It creates your tables. It hands you a public URL and a public anon key. It does not turn on Row Level Security for you. That step is yours.
Why Lovable Apps Ship With RLS Off and Keys Exposed?
Row Level Security, or RLS, is a setting. It decides who can read your Supabase tables through the public anon key. Off means anyone with that key can read every row. On, with the right policy, means only the right user sees their own data.
Lovable does not switch RLS on as part of scaffolding your project. Nobody has to flip a switch that was never shown to them. Most builders never touch it. The table sits open until someone checks.
The same shortcut shows up with secrets. Ask Lovable for a feature that calls an external API, like Stripe or OpenAI. The fastest path to a working demo is a direct call from the frontend. The key goes wherever the call goes. Into the public JavaScript bundle. Anyone can open dev tools, view source, and read it as plain text.
This really happened. CVE-2025-48757 recorded over 170 Lovable-built apps with RLS off. Each one was readable through nothing more than the public anon key. That key was already sitting in the app's own bundle. Our guide to Lovable Supabase security covers the anon key. It covers the service role key too, in more depth. Our guide to securing API keys in a Lovable app covers that exposed-key pattern alone.
Lovable did what you asked. You asked for a working feature. The shortest path to a working feature runs through the frontend. Nobody asked for Row Level Security to be turned on. So it was not.
What is Security Issues We Find Most in Lovable-Built Apps?
We scan live URLs, not source code. Our scanner fingerprints a Lovable app directly. A .lovable.app or .lovable.dev domain gets matched in platformFingerprintScanner.js:43. We scanned the first 100 vibe-coded apps we saw. The average Launch Readiness Score was 42 out of 100. On Lovable apps, the same gaps repeat.
- Supabase RLS disabled. The public anon key can then read whole tables. See our Supabase RLS guide.
- Secret keys in the frontend bundle. Stripe, OpenAI, and service role keys readable in the browser.
- Missing rate limiting. No cap on login, signup, or AI endpoints. A script can hammer them for free.
- Auth that only checks on the client. A login screen in front of pages that never verify the session on the server.
- Missing HTTP security headers. No HSTS, no CSP, no clickjacking protection.
- Public GitHub sync. Lovable can push your project to a connected GitHub repo. If that repo is public, your commit history is public too, secrets and all.
When our scanner spots a Lovable, Bolt.new, or v0.dev app, it adds a note. AI-builder apps often ship with the Supabase anon key exposed and no RLS. A paid Deep Audit checks and confirms this. It lives in platformFingerprintScanner.js:419. We wrote one rule for all three platforms because the pattern is that consistent.
Our gitleaks-based scanner treats this as a hard rule. It is stated directly in code comments. Any secret found in a public asset is a critical exposure. That is true even after you rotate the key. See gitleaksScanner.js:4. Rotating the key after the fact does not undo the exposure window.
See your app's score, free, in 30 seconds?
Point the scan at your live URL. No code access. No install. Get a Launch Readiness Score out of 100.
Run the free scanWhat is Beyond Security: Reliability, Performance, and Monitoring?
Security is one of four things we check. The other three break launches too. A prompt-to-app builder skips them just as often.
- Reliability. No error handling. No retries. One failed API call, and the page hangs on a spinner.
- Performance. N+1 queries and missing indexes. Fast with 10 demo rows. Slow at 10,000 real ones.
- Monitoring. The big one. No error tracking at all. When production breaks, you hear it from an angry user, not an alert.
"No rate limiting detected under concurrent load." That is the title our load scanner returns. It fires when a site answers a burst of requests. No 429 comes back. You can find it in k6Scanner.js:244. It fires on most AI-built apps we test, Lovable included.
How to Run a Lovable Security Audit?
You have three ways to check a Lovable app. They see different things.
| Check | What it sees | What it misses |
|---|---|---|
| Asking Lovable to review its own code | The code, as written | Whether the live app enforces any of it |
| Source scanner (Snyk, Semgrep) | The repo and its packages | Runtime config: is RLS on, is monitoring live |
| URL scan (Launch Ready Code) | Your live, deployed app, as attackers see it | Nothing on the public surface — that is the point |
The URL scan takes about 30 to 60 seconds. Paste your live URL. The scanner spots your platform and checks all four areas. You get a score out of 100 with the exact findings. No code access, no install, nothing to connect. Want to test your API surface on its own? See our guide to API security testing tools for AI-built apps.
Should your pre-launch lovable security checklist concern you?
Run this list before you ship. Each item is a check you can do today.
- RLS on for every table. Open Supabase, check each table, and test a query with the anon key. Denied means safe.
- No secrets in your frontend bundle. Search your build output for
sk_live,sk-, and any raw API key. Only the Supabase anon key belongs there. - Server-side checks on paid actions. Any Stripe or OpenAI call should run through a backend route or edge function. Never the browser.
- Rate limits on auth and AI endpoints. Burst 30 requests at your login. If you never see a
429, you have none. - Auth verified on the server. Log out, then hit a protected page and API route directly. Both should refuse.
- GitHub sync checked. If Lovable pushed your project to GitHub, check the repo is private. Then scan the commit history for old keys.
- Security headers set. HSTS, CSP, and X-Frame-Options at minimum.
- Error tracking live. Break something on purpose. If no alert arrives, you are flying blind.
When to Bring In a Human: From Free Scan to Fractional CTO?
Start with the free scan. It gives you a score out of 100. It gives you the top findings, in about 30 seconds. Want the full picture? The Launch Readiness Audit Report ($499, one-time) covers all four areas in depth. You get a branded report. You get a benchmark against 200+ audited apps. You get a ranked fix plan with time estimates.
Prefer a single tool over a one-time audit? We compare a few in our roundup of Fortify alternatives for vibe-coded apps.
Would you rather have someone fix it for you? Our Code Care tier assigns a human Fractional CTO. Every change arrives as a pull request you approve. Never a direct push to your main branch. If your app handles EU users or AI features, check the compliance side too. The EU AI Act's Article 50 rules are already active. The Lovable security audit page covers more platform detail.
What should you know about Ship your Lovable app with proof, not hope?
One scan tells you where you stand. Free, 30 seconds, no code access.
Scan your live URL nowFrequently Asked Questions
What is OWASP and CWE Classification: Why Lovable Apps Fail Security Checks?
The security gaps in Lovable-built apps are not random — they map precisely to documented vulnerability classes. The OWASP Top 10 covers the most frequent:
- A01:2021 Broken Access Control (CWE-284) — Supabase RLS disabled. CVE-2025-48757 (CVSS 9.3) documented 170+ Lovable apps with all table data readable via the public anon key.
- A02:2021 Cryptographic Failures (CWE-200) — Secret API keys (Stripe, OpenAI, Supabase service role) placed in the frontend JavaScript bundle. Visible in page source to any visitor. Our gitleaksScanner.js:4 flags any secret in a public asset as critical.
- A07:2021 Identification and Authentication Failures (CWE-307) — No rate limiting on login, signup, or AI endpoints. Our k6Scanner.js:244 fires on most Lovable apps tested. CAPEC-22 (Exploiting Trust in Client) applies when keys sit in the bundle.
- A05:2021 Security Misconfiguration — Missing HSTS, CSP, and X-Frame-Options headers. No error tracking configured at launch.
The CISA Secure by Design initiative specifically identifies enabling access controls by default as a foundational requirement — precisely what Lovable skips with RLS. The CVE-2025-48757" target="_blank" rel="noopener">NIST NVD entry for CVE-2025-48757 scores the RLS-off class at CVSS 9.3 (Critical).
Is Lovable safe to use?
Yes. Lovable has no critical CVE tied to the platform itself. The risk is not the tool. It is the app it builds for you by default. Row Level Security often stays off. API keys can end up in the public bundle. Rate limits are rarely added. Each of those needs its own check before launch.
Why do Lovable apps ship with RLS off so often?
Lovable wires up a Supabase backend for you as part of the build. That includes the project, the tables, and the public anon key. Turning on Row Level Security is a manual step. Lovable does not take that step for you. Nobody has to flip a switch. It was never shown to them as a choice. It stays off unless you turn it on yourself.
What is a Lovable security audit?
It is a check of your live, deployed Lovable app. We look for the gaps the platform leaves behind. Keys readable in the browser. RLS turned off. No rate limits. No security headers. No error tracking. Launch Ready Code runs this check against your URL. It returns a score out of 100.
Is the Supabase anon key in my Lovable app a leak?
No. The anon key is public by design. Row Level Security is what protects your data behind it. The real question is whether RLS is on and correct for every table. If it is off, that public key can read your whole database. That is the exact failure recorded in CVE-2025-48757.
How long does a Lovable security scan take?
About 30 to 60 seconds. You give it your live URL. There is no install and no code access. You get a Launch Readiness Score out of 100. You get the list of gaps to fix.
Do I need to give you my source code?
No. The free scan is URL-based. It tests what is publicly exposed on your live app. That is where a real attacker starts. There is nothing to hand over and nothing to set up.
Research sources
- OWASP Foundation — OWASP Top 10 Web Application Security Risks (2021), the industry-standard vulnerability taxonomy referenced for all security categories in this article
- MITRE Corporation — CWE Top 25 Most Dangerous Software Weaknesses (2024), the weakness classification used to rank and prioritise code-level findings
- NIST National Vulnerability Database — NVD CVE severity ratings; all CVSS scores cited here are drawn from published NVD records
- Jai Mittal, Founder & CTO, Launch Ready Code — Proprietary data from 700+ AI-built app security audits, 2025–2026. Average Launch Readiness Score: 44/100. Most common critical failures: missing HTTP security headers (83% of scans), no rate limiting on auth endpoints (71%), exposed API keys or secrets (67%), absent database Row Level Security (58%).