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Security: mukul975/postgres-mcp-server

SECURITY.md

Security Policy

Supported Versions

We take security seriously and provide security updates for the following versions:

Version Supported
1.x.x

Reporting a Vulnerability

If you discover a security vulnerability in the PostgreSQL MCP Server, please report it responsibly:

How to Report

  1. Email: Send details to the repository maintainer via GitHub's private vulnerability reporting feature
  2. Do NOT create a public issue for security vulnerabilities
  3. Include as much detail as possible:
    • Description of the vulnerability
    • Steps to reproduce
    • Potential impact
    • Suggested fix (if known)

What to Expect

  • Acknowledgment: We'll acknowledge receipt within 48 hours
  • Initial Response: You'll receive an initial response within 72 hours
  • Updates: We'll provide regular updates on our progress
  • Resolution: We aim to resolve critical vulnerabilities within 7 days
  • Disclosure: We'll coordinate with you on responsible disclosure timing

Security Best Practices

When using this MCP server:

  1. Database Security:

    • Use strong, unique passwords for database connections
    • Implement proper database user permissions (principle of least privilege)
    • Use SSL/TLS for database connections in production
    • Regularly update PostgreSQL to the latest secure version
  2. Environment Security:

    • Store database credentials in environment variables, never in code
    • Use .env files for local development (already in .gitignore)
    • Regularly rotate database passwords
    • Monitor database access logs
  3. Network Security:

    • Restrict database network access to necessary hosts only
    • Use firewall rules to limit database port access
    • Consider using connection pooling and rate limiting
  4. MCP Server Security:

    • Run the server with minimal required permissions
    • Regularly update dependencies (pip install -U -r requirements.txt)
    • Monitor server logs for suspicious activity
    • Use process isolation in production environments

Security Features

This MCP server includes several security features:

  • Query Validation: Only allows specific SQL query types
  • Parameter Sanitization: Uses parameterized queries to prevent SQL injection
  • Connection Management: Proper connection pooling with cleanup
  • Error Handling: Secure error messages that don't leak sensitive information
  • Permission Respect: Honors database user permissions and access controls

Vulnerability Response Process

  1. Assessment: We evaluate the severity and impact
  2. Development: We develop and test a fix
  3. Testing: Comprehensive testing in isolated environments
  4. Release: Security patch released with version bump
  5. Notification: Users notified via GitHub releases and security advisories
  6. Documentation: Security advisory published with details and mitigation

Security Updates

Security updates will be released as:

  • Critical: Immediate patch release (within 24-48 hours)
  • High: Patch release within 7 days
  • Medium: Included in next regular release
  • Low: Included in next regular release with documentation

Acknowledgments

We appreciate security researchers and users who help keep this project secure by responsibly disclosing vulnerabilities.

There aren’t any published security advisories