v0.dev vs Lovable Security
v0.dev and Lovable both use AI to generate code, but with very different scopes, and that scope is what drives their security profile. v0 generates React/Next.js UI components and pages without a backend of its own, so there's no database or auth layer for it to misconfigure. Lovable generates complete full-stack applications wired to Supabase, including auth, tables, and API routes, which means it can introduce full-stack vulnerabilities on its own. When we scan apps built with either tool, the pattern holds: v0 output tends to carry client-side issues like secrets baked into the bundle or missing security headers on however it's deployed, while Lovable output more often has the deeper issues, unprotected API endpoints and tables with Row Level Security left disabled.
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The Verdict
v0's limited scope means fewer security concerns but less functionality. Lovable builds complete apps but requires comprehensive security review, and its CVE-2025-48757 history shows that review isn't optional.
v0 components need security review when integrated into a real backend, check for secrets accidentally hardcoded during integration and confirm the hosting platform sets standard security headers. Lovable apps need full security scanning including database RLS, auth configuration, and secret handling before launch.
Industry Security Context
When comparing v0.dev vs Lovable, consider these broader security trends.
of Lovable applications (170 out of 1,645) had exposed user data in the CVE-2025-48757 incident
Source: CVE-2025-48757 security advisory
of data breaches involve databases with misconfigured access controls
Source: Verizon Data Breach Investigations Report
average cost of a data breach in 2023
Source: IBM Cost of a Data Breach Report 2023
“Vibe coding your way to a production codebase is clearly risky. Most of the work we do as software engineers involves evolving existing systems, where the quality and understandability of the underlying code is crucial.”
Using v0.dev or Lovable?
Regardless of which platform you choose, vas scans for security issues specific to your stack.
Start Security ScanFrequently Asked Questions
Lovable vs v0, which is more secure?
Neither is 'more secure' in the abstract, they carry different risks because they do different jobs. v0 only generates frontend components, so it can't misconfigure a database or leave an API endpoint unprotected, but the components you integrate still need review. Lovable generates the whole stack, including the database and auth, which means there's more surface area to get wrong, as CVE-2025-48757 demonstrated across 170+ apps.
Does v0 generate secure code?
v0's output is generally clean React/Next.js code, but 'secure' depends on what you connect it to. In our scans, the most common issues in v0-based apps are things introduced during integration, API keys hardcoded into client components, missing security headers on the deployment, or XSS risk from unsanitized user input rendered in generated components. The component code itself rarely contains the vulnerability; how it's wired up usually does.
Is Lovable safe after CVE-2025-48757?
CVE-2025-48757, disclosed in May 2025, documented that 10.3% of analyzed Lovable apps had Row Level Security misconfigurations exposing user data. Lovable has since added warnings and tooling to nudge users toward enabling RLS, but the underlying risk is unchanged: RLS is still something you must explicitly verify on every table. A Lovable app is only as safe as its RLS configuration, regardless of when it was built.
Do I need to scan apps from either platform?
Yes. v0 apps need scanning once they're connected to real data and deployed, mainly for exposed secrets and missing headers. Lovable apps need scanning for the same issues plus database-level access control, since RLS misconfiguration is the single most common and most damaging issue we find. vas scans the deployed application either way, so the tool used to build it doesn't limit what we can check.