Bolt Security Audit
Built your app with Bolt? We find the security issues AI missed.
Bolt by StackBlitz runs entirely in the browser using WebContainers, generating full-stack applications from text prompts. It can scaffold backends, databases, and frontends in a single session. The speed at which it produces working apps is impressive, but the generated code often takes shortcuts on security: database credentials get embedded in source files, CORS is configured to allow all origins, and authentication flows are frequently incomplete.
Common Bolt Security Issues
These are the vulnerabilities we most frequently find in Bolt-generated projects.
Database credentials in source code
criticalBolt regularly embeds database connection strings, including passwords, directly in server files rather than using environment variables, making them visible in version control.
Wildcard CORS configuration
highGenerated Express and Fastify backends typically set Access-Control-Allow-Origin to '*', allowing any website to make authenticated requests to your API.
Missing rate limiting on API routes
highAPI endpoints are generated without any rate limiting middleware, making them vulnerable to brute force attacks and denial of service.
Incomplete authentication flows
highLogin and signup systems often lack email verification, password reset security, and session invalidation, leaving accounts vulnerable to takeover.
No CSRF protection on forms
mediumForm submissions and state-changing POST requests are generated without CSRF tokens, allowing malicious sites to submit requests on behalf of authenticated users.
What We Check
Our Bolt audit covers every critical security area in your application.
Authentication & Sessions
API Route Security
Database Security
Input Validation
Environment & Secrets
Third-party Integrations
Headers & CORS
Error Handling
Secure Your Bolt App
Get a professional security audit tailored to Bolt-generated code. Reports delivered within days.
Bolt Audit FAQ
Is Bolt code secure?
Bolt generates functional code quickly, but like all AI coding tools, it often prioritises getting things working over security best practices. Common issues include exposed API keys, missing input validation, and insecure database configurations. Our audits specifically target the patterns Bolt tends to produce.
What are common Bolt security issues?
The most frequent issues we find in Bolt projects include: database credentials in source code, wildcard cors configuration, missing rate limiting on api routes. These are well-documented patterns that our audit process specifically checks for.
Do I need an audit for my Bolt app?
If your Bolt app handles user data, payments, or any sensitive information, an audit is strongly recommended before going to production. Even simple apps can have critical vulnerabilities that AI tools introduce without warning. Our Security Scan package is a great starting point.
How long does a Bolt audit take?
Our Security Scan takes 3 business days, the Full Audit takes 7 business days, and the Production Ready package takes 10-12 business days. The timeline depends on the size and complexity of your codebase, not which tool generated it.