Bolt.new Security

Bolt.new Security Scanner

Built fast with Bolt.new? Now make it secure. We find the vulnerabilities that AI code generation misses.

Our automated security scanner analyzes your Bolt application for vulnerabilities, misconfigurations, and exposed secrets. Get a comprehensive security report in minutes, not days.

Top 5 Security Issues in Bolt.new Apps

1

Exposed API Keys

OpenAI, Stripe, and other secret keys hardcoded directly in frontend JavaScript bundles. Attackers can extract these keys and use your API quotas, make purchases, or access your services.

2

Missing Supabase RLS

Database tables accessible to anyone with the anon key because Row Level Security policies haven't been configured. This means any user can read, modify, or delete all data in exposed tables.

3

No Security Headers

Missing Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options headers leave your app vulnerable to cross-site scripting, man-in-the-middle attacks, and clickjacking.

4

Weak Authentication

No minimum password requirements, missing email verification, and lack of rate limiting on login endpoints allows brute force attacks and account takeovers.

5

Source Map Exposure

Production source maps uploaded to hosting reveal your entire application source code, including business logic, API endpoints, and potentially sensitive comments.

Where Security Breaks in Bolt.new Apps

Built on Supabase (Postgres + RLS), Bolt.new applications share a recognizable fingerprint — which means attackers and automated scanners find them the same way every time. Based on real vulnerability patterns in Bolt.new deployments, the breakdown is 2 critical-impact issues, 2 high-impact, and 1 medium-or-lower.

Real-world observation

Common to find OpenAI keys, database passwords, and OAuth secrets in Bolt projects.

CRITICAL

Hardcoded Secrets in Generated Code

Bolt generates working demos with API keys directly in source files.

Fix: Audit all generated code. Move secrets to environment variables before deployment.

CRITICAL

Database Without Security Rules

Firebase or Supabase databases created without any access controls.

Fix: Configure Security Rules (Firebase) or RLS (Supabase) before going live.

MEDIUM

Source Code Exposure via Source Maps

Production builds include source maps revealing original code structure.

Fix: Disable source maps in production: productionBrowserSourceMaps: false

HIGH

Client-Side Auth Bypass

Auth checks only in frontend code can be bypassed by calling APIs directly.

Fix: Always verify authentication server-side. Never trust client-side auth state.

HIGH

Injection via Unvalidated Input

AI-generated code often trusts user input without validation.

Fix: Add input validation on all endpoints. Use parameterized queries.

What We Check

Secret Detection

Scans all JavaScript bundles for API keys, tokens, and credentials that should never be in frontend code. We detect OpenAI keys, Stripe secrets, AWS credentials, database connection strings, and dozens of other sensitive patterns.

Database Security

Tests Supabase/Firebase for proper security rules. We query your tables to verify they're protected.

Security Headers

Checks for all important HTTP security headers that prevent XSS, clickjacking, and MITM attacks.

Auth & Sessions

Analyzes authentication implementation for weak passwords, session issues, and rate limiting gaps.

What You'll Get

Full security vulnerability report
Exposed secrets with exact locations
Database exposure details
Missing security headers list
Code snippets to fix each issue
next.config.js fixes
AI-ready markdown export
Re-scan after fixes

Why Bolt.new Apps Need Security Scanning

Bolt.new enables you to build full-stack applications in minutes using AI-powered code generation. While this dramatically accelerates development, the generated code often prioritizes functionality over security. Features that would take days to build manually are created in seconds, but security configurations require careful attention that AI assistants can overlook.

Most Bolt.new applications connect to Supabase for database and authentication. Supabase is secure by default, but requires explicit Row Level Security (RLS) policies to protect your data. Without these policies, your database tables are accessible to anyone who can view your frontend code and extract the Supabase anon key.

VAS was built specifically to catch the security issues common in AI-generated applications. We test your actual deployed application, checking for exposed API keys, verifying database security policies, analyzing authentication strength, and ensuring proper security headers are configured on your hosting platform.

How Bolt.new Security Scanning Works

1

Submit Your URL

Enter your Bolt application URL. Our scanner automatically detects your tech stack and configures the appropriate security checks for Bolt.new.

2

Automated Analysis

We scan for exposed secrets, security headers, authentication issues, database misconfigurations, and Bolt.new-specific vulnerabilities. The scan typically completes in 15-20 minutes.

3

Get Actionable Results

Receive a detailed report with prioritized vulnerabilities, severity ratings, and step-by-step remediation guidance with code examples specific to Bolt.new.

Common Questions About Bolt.new Security

What vulnerabilities are most common in Bolt.new apps?

The top finding classes in Bolt.new apps: hardcoded secrets in generated code; database without security rules; source code exposure via source maps. Of those, hardcoded secrets in generated code is the most frequent critical-impact issue — it typically exposes the full dataset in a single query.

What does a VAS scan of a Bolt.new app check?

The scan probes your deployed app for the specific findings above: secret detection, database security, security headers, auth & sessions. It actually attempts each vulnerability class (not just header inspection) and reports results with severity + fix for each.

Is running a scan safe for production?

Yes. The scanner uses read-only probes against public endpoints — no data modification, no destructive tests. Scans typically finish in 15–20 minutes and will not impact application availability.

Remediation Playbook for Bolt.new

Priority-ordered fixes for the specific findings we see in Bolt.new apps. Critical items close data-exposure gaps; high items prevent compromise; medium items reduce attack surface. Applies to apps using Supabase (Postgres + RLS) — the dominant Bolt.new stack.

1. Hardcoded Secrets in Generated Code

Why it matters: Bolt generates working demos with API keys directly in source files.

How to close it: Audit all generated code. Move secrets to environment variables before deployment.

2. Database Without Security Rules

Why it matters: Firebase or Supabase databases created without any access controls.

How to close it: Configure Security Rules (Firebase) or RLS (Supabase) before going live.

3. Source Code Exposure via Source Maps

Why it matters: Production builds include source maps revealing original code structure.

How to close it: Disable source maps in production: productionBrowserSourceMaps: false

4. Client-Side Auth Bypass

Why it matters: Auth checks only in frontend code can be bypassed by calling APIs directly.

How to close it: Always verify authentication server-side. Never trust client-side auth state.

5. Injection via Unvalidated Input

Why it matters: AI-generated code often trusts user input without validation.

How to close it: Add input validation on all endpoints. Use parameterized queries.

Verify the fixes stuck

Run a VAS scan after applying each fix to confirm the gap is actually closed. "I applied the fix" is not evidence — the fix may have been partial, reverted, or not deployed. Re-scanning gives you proof, and a record for compliance if you ever need it.

Secure Your Bolt.new App

Don't let vulnerabilities compromise your hard work. Security issues in Bolt.new applications can lead to data breaches, unauthorized access, and damaged user trust. The average data breach costs startups between $120,000 and $1.24 million.

Run a Starter Scan in minutes — just $9. Scan before you launch and deploy with confidence knowing your application meets security best practices.

Get Starter Scan