Bolt.new Security Issues
The most common security vulnerabilities in Bolt.new applications—and how to fix them before attackers find them.
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7 Security Issues Documented
Common vulnerabilities found in Bolt.new applications
Critical Security Issues
Exposed API Keys in Source
criticalBolt generates code with API keys directly in source files for quick demos.
Immediate key compromise. Attackers can use your OpenAI, Stripe, or other service quotas.
grep -r 'sk-' . or search for 'apiKey' in generated code.
Move all keys to environment variables. Use .env files and process.env.
Database Without Security Rules
criticalSupabase or Firebase databases created without access controls configured.
Anyone can read/write all data. Complete database compromise.
Try querying database without authentication. If it works, rules are missing.
Enable RLS (Supabase) or write Security Rules (Firebase) before deployment.
High Severity Issues
Source Maps in Production
highProduction builds include source maps, exposing original code.
Business logic exposed, easier vulnerability discovery, potential secret leak.
Check if /bundle.js.map is accessible or look for sourceMappingURL in JS files.
Set productionBrowserSourceMaps: false in next.config.js or equivalent.
Missing Server-Side Validation
highAI-generated code often relies on client-side validation only.
Input validation bypass, injection attacks, data integrity issues.
Inspect API calls - if validation only happens in browser, it's vulnerable.
Add validation in API routes/server functions. Never trust client input.
Insecure Session Handling
highSession cookies without proper security flags (HttpOnly, Secure, SameSite).
Session hijacking through XSS, man-in-the-middle attacks.
Check cookies in browser DevTools > Application > Cookies.
Configure auth library to set secure cookie flags.
Medium Severity Issues
Debug Mode in Production
mediumVerbose error messages and debug endpoints left enabled.
Information disclosure, easier attack surface mapping.
Trigger errors and see if stack traces are exposed.
Set NODE_ENV=production. Configure proper error handling.
Missing Rate Limiting
mediumNo rate limiting on auth or API endpoints.
Brute force attacks, API abuse, potential DoS.
Send many requests quickly - if none are blocked, no rate limiting.
Implement rate limiting middleware or use API gateway features.
How to Prevent These Issues
- Run automated security scans before every deployment
- Configure database access controls (RLS/Security Rules) first
- Store all secrets in environment variables, never in code
- Enable email verification and strong password policies
- Add security headers to your hosting configuration
- Review AI-generated code for security before accepting
Find Issues Before Attackers Do
VAS scans your Bolt.new app for all these issues automatically. Scans from $5, instant results.
Get Starter ScanFrequently Asked Questions
What are the most common Bolt.new security issues?
The most common issues are: exposed API keys/secrets, missing database access controls (RLS or Security Rules), weak authentication configuration, and missing security headers. These account for over 80% of vulnerabilities in Bolt.new applications.
How do I find security issues in my Bolt.new app?
Run a VAS security scan for automated detection of common vulnerabilities. Manually check: database access controls, search code for hardcoded secrets, verify authentication settings, and test security headers. VAS catches all of these automatically.
Are Bolt.new security issues fixable?
Yes, nearly all Bolt.new security issues are configuration problems with straightforward fixes. Missing RLS, exposed secrets, weak auth—all have clear remediation steps. Most fixes take under an hour to implement.
How quickly can Bolt.new security issues be exploited?
Exposed databases and API keys can be discovered within minutes using automated scanners. Attackers actively scan for common patterns. This is why security configuration must happen before deployment, not after.
Does Bolt.new have built-in security?
Bolt.new provides security features, but they require configuration. Security isn't automatic—you must enable database access controls, manage secrets properly, configure auth settings, and add security headers. The tools exist; you must use them.
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Last updated: January 16, 2026