Sentrail

Lovable security

Lovable App Security: What to Check Before You Ship

A Lovable-built app is not secure merely because it deploys successfully. Review project visibility, browser-exposed code, Supabase RLS and grants, authentication and object-level authorization, dependencies, and production configuration. Lovable supplies platform controls; the builder still owns the generated application's security decisions.

Reviewed by Sentrail · Updated August 17, 2026

Shared responsibility

Separate platform controls from the app owner's controls.

A platform can secure its service while an individual app still has unsafe authorization, secrets, dependencies, or deployment settings.

What Lovable handles

Lovable documents platform security controls, project visibility, a security checker, and integrated guidance for identifying schema/RLS and code issues.

What the builder owns

The builder owns application data classification, database policies, authorization logic, secrets, dependency decisions, integration scopes, and production verification.

Browser boundary

Lovable states that frontend code runs in the browser. Any credential embedded in client code or a public build is exposed to the user and must not be treated as a secret.

Project versus website visibility

Project/editor visibility and access to the deployed website are separate controls. Review both explicitly and avoid assuming one protects the other.

Configuration guidance

Check the boundaries that change with this platform.

Supabase RLS and grants

Database

Enable RLS on exposed tables and views, write least-privilege policies, review grants, and test as anonymous and authenticated users—not only through the app UI.

Secrets

Client boundary

Keep service-role keys and private API credentials in server-side functions or platform secret storage. Public/anon keys are identifiers whose safety depends on RLS and authorization.

Authentication and authorization

Identity

Require authorization on every object read and write. Login alone does not prove that one user cannot access another user's row or tenant.

Deployment evidence

Production

Verify the deployed environment, domain, headers, environment-variable exposure, and database target. Preview behavior is not production evidence.

Verified public record

Incidents and vulnerabilities, classified by evidence.

A reported vulnerability is not automatically evidence of exploitation. The labels below preserve that distinction.

Public-project access regression (2026)

Confirmed incident · resolved

Lovable confirmed that public project chat history and source code were potentially accessible to authenticated users with a project link from February 3 to April 20, 2026. Private projects and Lovable Cloud were not affected.

Universal account-takeover chain (2025)

Product vulnerability · fixed

Vidoc Security disclosed a sandbox/authentication chain. The report says Lovable fixed it within hours and found no evidence of untrusted exploitation or user impact.

CVE-2025-48757

Product vulnerability · disputed

The NVD describes insufficient RLS in generated apps and records Lovable's dispute over product attribution. This page does not treat the CVE as a confirmed breach.

Sentrail methodology

Verify the generated app, not the platform name.

Sentrail evaluates repository, dependency, database, and deployment evidence tied to the app under review. Deterministic scanners identify candidate findings, direct integration evidence establishes runtime posture, and contextual review explains why a result matters.

Findings remain linked to the evidence that produced them. Missing or stale required evidence produces an insufficient-evidence verdict instead of an invented assurance. Proposed code changes remain approval-gated.

Pre-launch checklist

Run these checks before shipping.

  • Confirm project visibility and deployed-site access separately
  • Remove private credentials from browser code and repository history
  • Enable and test RLS on every exposed table and view
  • Verify object and tenant authorization for every read and write
  • Review Supabase grants, functions, and service-role usage
  • Scan exact dependency versions and the current commit
  • Verify production environment variables, domains, and headers
  • Require approval and a fresh scan after remediation

Sources

Primary evidence and platform guidance.

Check the app before you ship it.

Connect the systems you actually use, collect current evidence, and keep every remediation behind human approval.

Run a security check See all seven checks