Status: ✅ PASSED - No vulnerabilities detected

Scan Date: December 17, 2025
Tool: CodeQL Security Analysis
Languages Scanned: Python, JavaScript/TypeScript

• Python: 0 alerts
• JavaScript: 0 alerts

1. No Hardcoded Secrets

   • All sensitive values use environment variables
   • .env.example files provided (without actual credentials)
   • Neo4j password configurable via environment

2. Input Validation

   • Pydantic models validate all API inputs
   • TypeScript provides compile-time type safety
   • FastAPI automatic request validation

3. Dependencies

   • Modern, maintained package versions
   • Regular security updates recommended
   • Minimal dependency footprint

4. API Security

   • CORS configured (currently permissive for demo)
   • Type-safe request/response handling
   • Error handling without information leakage

For production deployment, implement these additional security measures:

# Add to FastAPI
from fastapi.security import OAuth2PasswordBearer

oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")

@app.get("/api/protected")
async def protected_route(token: str = Depends(oauth2_scheme)):
    # Verify token
    pass

# Restrict CORS to specific origins
app.add_middleware(
    CORSMiddleware,
    allow_origins=["https://yourdomain.com"],
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "DELETE"],
    allow_headers=["*"],
)

• Change default Neo4j credentials
• Use strong passwords (minimum 16 characters)
• Enable Neo4j authentication
• Use SSL/TLS for database connections
• Implement connection pooling limits

• Use HTTPS/TLS for all connections
• Implement rate limiting
• Add request size limits
• Use reverse proxy (nginx)
• Configure firewall rules

# Encrypt sensitive data at rest
from cryptography.fernet import Fernet

key = os.getenv("ENCRYPTION_KEY")
cipher = Fernet(key)
encrypted_data = cipher.encrypt(data.encode())

# Use secrets management
# Example with Docker secrets
docker secret create neo4j_password password.txt

from fastapi.middleware.trustedhost import TrustedHostMiddleware
from fastapi.middleware.httpsredirect import HTTPSRedirectMiddleware

app.add_middleware(TrustedHostMiddleware, allowed_hosts=["yourdomain.com"])
app.add_middleware(HTTPSRedirectMiddleware)

from pydantic import validator

class UserInput(BaseModel):
    text: str
    
    @validator('text')
    def sanitize_text(cls, v):
        # Remove potential XSS or injection attempts
        return v.strip().replace('<', '').replace('>', '')

1. Never commit secrets

   • Use .gitignore for sensitive files
   • Review commits before pushing
   • Use git-secrets or similar tools

2. Keep dependencies updated

   pip list --outdated
   npm audit

3. Regular security scans

   # Python
   pip install safety
   safety check
   
   # JavaScript
   npm audit

4. Code review

   • Review all code changes
   • Check for security issues
   • Validate input handling

5. Logging and monitoring

   • Log security events
   • Monitor for suspicious activity
   • Set up alerts

This is a demonstration version with the following security limitations:

1. No Authentication: API endpoints are publicly accessible
2. Default Credentials: Neo4j uses default demo password
3. Permissive CORS: Allows requests from any origin
4. No Rate Limiting: No protection against abuse
5. HTTP Only: No TLS/SSL encryption
6. No Data Encryption: Data stored in plaintext
7. Debug Mode: Verbose error messages exposed

⚠️ DO NOT USE IN PRODUCTION WITHOUT IMPLEMENTING SECURITY MEASURES

If you discover a security vulnerability in this project:

1. Do not open a public issue
2. Email security details to the maintainer
3. Allow reasonable time for response
4. Coordinate public disclosure

• Change all default passwords
• Implement authentication (OAuth2/JWT)
• Configure CORS properly
• Enable HTTPS/TLS
• Add rate limiting
• Implement request logging
• Set up monitoring and alerts
• Regular dependency updates
• Security audit
• Penetration testing
• Data encryption at rest and in transit
• Backup and disaster recovery plan
• Incident response plan

Depending on your use case, you may need to comply with:

• GDPR: If handling EU personal data
• HIPAA: If handling health information
• SOC 2: For enterprise customers
• PCI DSS: If processing payments

• OWASP Top 10
• FastAPI Security
• Neo4j Security
• Docker Security

Last Updated: December 17, 2025
Next Review: Recommended every 90 days or after major changes