Security Analysis

Is v0.dev Safe?

An honest security analysis of v0.dev for developers considering it for their projects.

Quick Answer

Safe - review generated code for edge cases

v0.dev by Vercel is safe to use for generating UI components. The generated React code follows modern practices. Security depends on how you integrate components and handle user input in your application.

Security Assessment

Security Strengths

  • Built by Vercel, a security-conscious company
  • Generates React code which has XSS protection built-in
  • Components are UI-focused, limiting attack surface
  • No backend code generation means fewer security vectors
  • Well-structured code that's easy to audit

Security Concerns

  • Generated code may not handle all edge cases
  • User input handling may need additional validation
  • Integration with APIs requires proper security setup
  • Component styling may allow CSS injection if misused
  • Complex prompts may generate unexpected code

Security Checklist for v0.dev

  • 1
    Review generated code before using in production
  • 2
    Add input validation for user-provided data
  • 3
    Sanitize any dynamic content rendered
  • 4
    Check API integrations for proper error handling
  • 5
    Test components with malicious input
  • 6
    Ensure proper CSP headers when deploying

The Verdict

v0.dev is safe for generating UI components. The security of your final app depends on how you integrate these components, handle user data, and configure your backend. Always review generated code.

Security Research & Industry Data

Understanding v0.dev security in the context of broader industry trends and research.

10.3%

of Lovable applications (170 out of 1,645) had exposed user data in the CVE-2025-48757 incident

Source: CVE-2025-48757 security advisory

4.45 million USD

average cost of a data breach in 2023

Source: IBM Cost of a Data Breach Report 2023

500,000+

developers using vibe coding platforms like Lovable, Bolt, and Replit

Source: Combined platform statistics 2024-2025

What Security Experts Say

There's a new kind of coding I call 'vibe coding', where you fully give in to the vibes, embrace exponentials, and forget that the code even exists.

Andrej KarpathyFormer Tesla AI Director, OpenAI Co-founder

It's not really coding - I just see stuff, say stuff, run stuff, and copy paste stuff, and it mostly works.

Andrej KarpathyFormer Tesla AI Director, OpenAI Co-founder

Verify Your v0.dev App Security

Don't guess - scan your app and know for certain. VAS checks for all the common security issues in v0.dev applications.