py-push-server/SECURITY_CHECKLIST.md

Security Audit Checklist for Web Push Service

Authentication & Authorization

• Basic auth implemented for admin endpoints
• VAPID authentication for push notifications
• Environment variable for admin password
• Consider rate limiting for subscription endpoints
• Consider adding API key authentication for public endpoints

Data Validation

• Input validation for subscription data
• Message size limits (100 chars)
• Notification type validation
• Consider adding input sanitization for messages

Database Security

• SQLite database with configurable path
• No raw SQL queries (uses SQLAlchemy ORM)
• Consider adding database connection pooling
• Consider encryption at rest for sensitive data

Push Notification Security

• VAPID key rotation capability
• Secure key generation using cryptography library
• Proper error handling for expired subscriptions
• Consider adding payload encryption

General Security

• Type hints for better code safety
• Error logging implemented
• Consider adding request logging
• Consider adding CORS protection
• Consider adding CSP headers