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Alex Spinov
Alex Spinov

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Snyk Has a Free Security Scanner — Find Vulnerabilities in Your Code Before Hackers Do

#snyk #security #devops #webdev

Snyk Has a Free Security Scanner — Find Vulnerabilities in Your Code Before Hackers Do

You just ran npm install and added 847 transitive dependencies. How many of them have known vulnerabilities? Snyk tells you — and helps you fix them.

Snyk scans your code, dependencies, containers, and infrastructure-as-code for security vulnerabilities. It integrates into your IDE, CI/CD pipeline, and git workflow.

Free Tier

  • Unlimited tests on open source projects
  • 200 tests/month on private projects
  • Snyk Open Source — dependency scanning
  • Snyk Code — static analysis (SAST)
  • Snyk Container — Docker image scanning
  • Snyk IaC — Terraform/K8s config scanning

Quick Start: CLI 

# Install
npm install -g snyk

# Authenticate
snyk auth

# Test your project for vulnerabilities
snyk test

# Monitor continuously (sends alerts for new vulnerabilities)
snyk monitor

# Test a Docker image
snyk container test node:18-alpine

# Test Terraform files
snyk iac test ./infrastructure/
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Scanning Dependencies 

$ snyk test

Testing /my-project...

✗ High severity vulnerability found in lodash
  Description: Prototype Pollution
  Info: https://snyk.io/vuln/SNYK-JS-LODASH-567746
  Introduced through: lodash@4.17.15
  Fix: Upgrade to lodash@4.17.21

✗ Medium severity vulnerability found in axios
  Description: Server-Side Request Forgery
  Info: https://snyk.io/vuln/SNYK-JS-AXIOS-6124857
  Introduced through: axios@0.21.1
  Fix: Upgrade to axios@1.6.0

Tested 847 dependencies for known issues
Found 3 issues, 1 critical, 1 high, 1 medium
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CI/CD Integration 

# GitHub Actions
name: Security Scan
on: [push, pull_request]

jobs:
  snyk:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Run Snyk to check for vulnerabilities
        uses: snyk/actions/node@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          args: --severity-threshold=high
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IDE Integration

Snyk plugins for VS Code, IntelliJ, and others scan as you code:

// Snyk Code catches issues like:
const query = `SELECT * FROM users WHERE id = ${req.params.id}`;
// ⚠️ SQL Injection vulnerability detected
// Fix: Use parameterized queries

const html = `<div>${req.query.name}</div>`;
// ⚠️ Cross-site Scripting (XSS) vulnerability
// Fix: Sanitize user input
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The Bottom Line

Security isn't optional. Snyk makes it easy to find and fix vulnerabilities before they reach production. The free tier covers most individual developers and small teams.

Need to scan websites for security issues, monitor for data breaches, or audit your web presence? I build custom security monitoring tools.

📧 Email me: spinov001@gmail.com
🔧 My tools: Apify Store

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