MCP PostgreSQL Operations

# Security Policy ## Supported Versions We actively support and provide security updates for the following versions: | Version | Supported | | ------- | ------------------ | | Latest | ✅ Yes | | < 1.0 | ❌ No | ## Reporting a Vulnerability **Please do not report security vulnerabilities through public GitHub issues.** ### 🔒 Preferred Method: GitHub Security Advisories 1. Go to the [Security Advisories page](https://github.com/call518/MCP-PostgreSQL-Ops/security/advisories) 2. Click "Report a vulnerability" 3. Fill out the security advisory form with details ### 📧 Alternative Contact If you prefer email communication, you can reach out to the maintainer: - **Email**: [Contact through GitHub profile](https://github.com/call518) - **Response Time**: We aim to respond within 48 hours ## What to Include When reporting a security vulnerability, please include: ### 🎯 Vulnerability Details - **Type of vulnerability** (e.g., SQL injection, authentication bypass, data exposure) - **Component affected** (specific MCP tool, database connection, etc.) - **PostgreSQL version(s)** where the vulnerability exists - **Environment details** (deployment method, permissions, extensions) ### 📋 Reproduction Information - **Step-by-step reproduction guide** - **Sample configuration** (with sensitive data removed) - **Expected vs actual behavior** - **Potential impact assessment** ### 🛡️ Suggested Mitigation - **Immediate workarounds** (if any) - **Proposed fixes** (if you have suggestions) - **Affected user base** (estimation) ## Security Considerations ### 🔍 Common Security Areas Our MCP server handles sensitive database operations. Key security areas include: - **Database Connection Security**: Connection string handling, credential management - **Query Safety**: SQL injection prevention, query validation - **Data Exposure**: Sensitive information masking in outputs - **Access Control**: Permission requirements, privilege escalation prevention - **Network Security**: Connection encryption, host validation - **Extension Security**: Safe handling of pg_stat_statements and pg_stat_monitor data - **MCP Transport Security**: Secure client-server communication ### 🛡️ Built-in Security Features - **Read-only Operations**: All tools perform read-only database operations - **Input Validation**: Query parameters are validated and sanitized - **Credential Masking**: Passwords and sensitive data are masked in logs/outputs - **Least Privilege**: Operates with minimal required database permissions - **Version Compatibility**: Secure handling across PostgreSQL 12-17 ## Vulnerability Response Process ### ⏱️ Timeline 1. **Initial Response**: Within 48 hours of report 2. **Vulnerability Assessment**: Within 1 week 3. **Fix Development**: Timeline depends on severity 4. **Security Release**: Coordinated disclosure with reporter 5. **Public Disclosure**: After fix is available and users have time to update ### 📊 Severity Classification We follow industry-standard CVSS scoring: - **Critical (9.0-10.0)**: Immediate attention, emergency release - **High (7.0-8.9)**: High priority, next planned release - **Medium (4.0-6.9)**: Normal priority, regular release cycle - **Low (0.1-3.9)**: Low priority, may be bundled with other updates ## Security Best Practices for Users ### 🔐 Deployment Security - **Use dedicated database users** with minimal required permissions - **Enable SSL/TLS** for database connections - **Regularly rotate credentials** and connection strings - **Monitor access logs** for unusual activity - **Keep PostgreSQL updated** to latest supported version - **Secure extension data**: Be aware that pg_stat_statements contains query text and execution statistics ### 🛡️ Configuration Security - **Avoid superuser permissions** unless absolutely necessary - **Use connection pooling** with appropriate limits - **Configure proper network isolation** (VPC, firewalls) - **Enable audit logging** in PostgreSQL for sensitive environments - **Review MCP client access** regularly ### 🔗 MCP Client Security - **Client authentication**: Ensure secure MCP server access and authorized clients only - **Transport security**: Use HTTPS for streamable-http mode in production - **Client validation**: Monitor and restrict MCP client connections - **Environment variables**: Secure storage of database credentials in client configurations ### 🐳 Docker Deployment Security - **Container isolation**: Use non-root users in containers - **Secrets management**: Use Docker secrets or secure environment variable injection - **Network security**: Proper container network configuration and port restrictions - **Image security**: Use official PostgreSQL images and keep containers updated ## Acknowledgments We appreciate the security research community and will acknowledge researchers who report vulnerabilities responsibly: - **Public acknowledgment** in release notes (if desired) - **Security researchers page** recognition - **Direct communication** throughout the process ## Contact For security-related questions or concerns: - **GitHub Security Advisories**: [Report a vulnerability](https://github.com/call518/MCP-PostgreSQL-Ops/security/advisories/new) - **General Security Questions**: [GitHub Discussions - Security](https://github.com/call518/MCP-PostgreSQL-Ops/discussions) - **Maintainer Contact**: Available through GitHub profile --- **Thank you for helping keep MCP PostgreSQL Operations and the community safe!** 🛡️