Skip to main content

ShipSafe

ShipSafe
ShipSafe

Platform Security

Security Scanner for v0 Apps

v0 generates polished Next.js components, but it skips auth middleware, sanitization, and security headers. ShipSafe catches what v0's AI leaves out.

Scan Your v0 ProjectView Pricing

Beautiful Components, Missing Security

v0 by Vercel is excellent at generating UI components. It produces clean, accessible, well-structured Next.js code with shadcn/ui and Tailwind CSS. But v0 is a UI generation tool, not a security tool, and that distinction matters when you ship to production.

The components v0 generates handle the presentation layer well but leave the security layer entirely to you. API routes come without auth guards. Dynamic content gets rendered without sanitization. Full database records get passed to client components when only a name and avatar are needed.

If you're building with v0 and deploying to Vercel, you need to add these security layers yourself or use a tool that catches the gaps. Learn more in our guide to AI-generated code security risks and the vulnerabilities by platform reference.

Common Vulnerabilities in v0 Projects

These security issues are consistently present in applications assembled from v0-generated code.

Critical

XSS in Dynamic Content

v0 generates React components that render user-provided content using dangerouslySetInnerHTML or by interpolating unsanitized values into the DOM. When that content comes from a database, URL parameters, or user input, attackers can inject scripts that steal sessions, redirect users, or exfiltrate data.

Critical

Missing Auth Middleware on API Routes

v0 generates Next.js API routes and Server Actions without authentication middleware. The generated route handlers process requests and return data without ever checking who is making the request. Any endpoint that reads or writes user data becomes publicly accessible.

Medium

Insecure or Missing Security Headers

v0 does not generate security headers like Content-Security-Policy, X-Frame-Options, or Strict-Transport-Security. Without these headers, your app is vulnerable to clickjacking, MIME-type sniffing attacks, and content injection even if your code is otherwise clean.

High

Client-Side Data Exposure

v0 sometimes fetches full database records in Server Components and passes the entire object to Client Components, even when the UI only needs a few fields. Sensitive fields like email addresses, internal IDs, or role information end up serialized in the page's HTML and accessible via the Next.js RSC payload.

How ShipSafe Secures Your v0 Project

1

Connect Your v0 Project

Link your GitHub repo or paste your v0-generated code. ShipSafe understands Next.js App Router conventions, Server Components, and Server Actions.

2

Next.js-Aware Scanning

ShipSafe analyzes your route handlers, middleware, Server Components, and Client Components separately. It understands the data flow between server and client boundaries.

3

Actionable Security Report

Get a prioritized list of findings with severity ratings, affected files, and copy-paste fixes. Each fix is tailored to Next.js patterns and Vercel deployment conventions.

Frequently Asked Questions

Is v0-generated code secure?
v0 generates well-structured Next.js components, but it consistently skips security fundamentals. It does not add authentication middleware to API routes, does not sanitize dynamic content, does not configure security headers, and often over-exposes data to Client Components. The generated code works correctly but lacks the defensive layers needed for production.
What security risks does v0 create?
The most common risks are cross-site scripting (XSS) from unsanitized dynamic content rendering, unauthenticated API routes and Server Actions, missing security headers that leave you vulnerable to clickjacking and content injection, and over-fetching data that exposes sensitive fields to the client. These issues compound when combined in a single application.
How do I scan a v0 project?
Sign up at ship-safe.co and connect your GitHub repository. ShipSafe will automatically detect your Next.js project structure and scan all routes, components, middleware, and configuration files. You can also use the ShipSafe CLI to scan your project locally before deploying to Vercel. Results are available in minutes with specific file and line references.
Does ShipSafe check Vercel-specific issues?
Yes. ShipSafe checks for Vercel-specific configuration issues including environment variable exposure through NEXT_PUBLIC_ prefixes, missing middleware.ts for route protection, Edge Runtime security considerations, and serverless function timeout vulnerabilities. It also verifies that your next.config.js has appropriate security headers configured for the Vercel hosting environment.
Can I use ShipSafe with the v0 CLI?
Absolutely. After generating components with v0 and adding them to your project, run the ShipSafe CLI before committing. This catches vulnerabilities at the point of code generation, before they ever reach your repository or deployment pipeline. You can also set up ShipSafe as a GitHub Action to scan automatically on every pull request.

Secure Your v0 App Before It Hits Production

v0 gives you the UI. ShipSafe gives you the security layer. Scan your project in minutes and deploy with confidence.

Start Free Scan

No credit card required. See all plans