|
| 1 | +# MCP Gateway Security Features |
| 2 | + |
| 3 | +**⚠️ Important**: MCP Gateway is an **OPEN SOURCE PROJECT** provided "as-is" with **NO OFFICIAL SUPPORT** from IBM or its affiliates. Community contributions and best-effort maintenance are provided by project maintainers and contributors. |
| 4 | + |
| 5 | +**Current Version: 0.5.0 (Beta)** - MCP Gateway is currently in early beta. Security features are continuously evolving toward the 1.0 release. |
| 6 | + |
| 7 | +## Comprehensive Security Capabilities |
| 8 | + |
| 9 | +### 🔐 Authentication & Identity Management |
| 10 | + |
| 11 | +• **JWT Token Management** - Configurable JWT tokens with expiration, per-user token catalogs, and revocation support ([#87](https://github.com/IBM/mcp-context-forge/issues/87), [#425](https://github.com/IBM/mcp-context-forge/issues/425)) |
| 12 | + |
| 13 | +• **Database-Backed User Authentication** - Argon2id password hashing replacing basic auth ([#544](https://github.com/IBM/mcp-context-forge/issues/544)) |
| 14 | + |
| 15 | +• **Enterprise SSO Integration** - Support for GitHub, Google, LDAP/Active Directory identity providers ([#220](https://github.com/IBM/mcp-context-forge/issues/220), [#277](https://github.com/IBM/mcp-context-forge/issues/277), [#278](https://github.com/IBM/mcp-context-forge/issues/278), [#284](https://github.com/IBM/mcp-context-forge/issues/284)) |
| 16 | + |
| 17 | +• **Per-Virtual-Server API Keys** - Scoped access control for individual virtual servers ([#282](https://github.com/IBM/mcp-context-forge/issues/282)) |
| 18 | + |
| 19 | +• **Enhanced Session Management** - Secure session handling for Admin UI ([#541](https://github.com/IBM/mcp-context-forge/issues/541)) |
| 20 | + |
| 21 | +• **CSRF Token Protection** - Cross-site request forgery prevention ([#543](https://github.com/IBM/mcp-context-forge/issues/543)) |
| 22 | + |
| 23 | +### 🛡️ Authorization & Access Control |
| 24 | + |
| 25 | +• **Role-Based Access Control (RBAC)** - User/Team/Global scopes with private, team, and global catalog separation ([#283](https://github.com/IBM/mcp-context-forge/issues/283)) |
| 26 | + |
| 27 | +• **Policy-as-Code Engine** - Rego-based policy enforcement for fine-grained authorization ([#271](https://github.com/IBM/mcp-context-forge/issues/271)) |
| 28 | + |
| 29 | +• **IP-Based Access Control** - Configurable IP allowlisting for network-level security ([#536](https://github.com/IBM/mcp-context-forge/issues/536)) |
| 30 | + |
| 31 | +• **Endpoint Feature Flags** - Selectively enable/disable tools, resources, prompts, servers, gateways ([#537](https://github.com/IBM/mcp-context-forge/issues/537)) |
| 32 | + |
| 33 | +• **Resource-Level Access Control** - Virtual server composition with granular tool/resource visibility control |
| 34 | + |
| 35 | +### 🔒 Data Protection & Encryption |
| 36 | + |
| 37 | +• **Cryptographic Request Signing** - End-to-end request/response signing and verification ([#230](https://github.com/IBM/mcp-context-forge/issues/230)) |
| 38 | + |
| 39 | +• **TLS/mTLS Support** - Certificate-based authentication with private CA support ([#568](https://github.com/IBM/mcp-context-forge/issues/568)) |
| 40 | + |
| 41 | +• **Enterprise Secrets Management** - HashiCorp Vault integration for secure credential storage ([#542](https://github.com/IBM/mcp-context-forge/issues/542)) |
| 42 | + |
| 43 | +• **Transport Layer Security** - Multiple secure protocols (SSE, WebSocket, HTTPS) with configurable TLS termination |
| 44 | + |
| 45 | +### 🚦 Input Validation & Sanitization |
| 46 | + |
| 47 | +• **Gateway-Level Input Validation** - Prevent path traversal and injection attacks ([#221](https://github.com/IBM/mcp-context-forge/issues/221)) |
| 48 | + |
| 49 | +• **AI Guardrails & PII Masking** - Input/output sanitization with sensitive data detection ([#229](https://github.com/IBM/mcp-context-forge/issues/229)) |
| 50 | + |
| 51 | +• **Content Size & Type Limits** - Security limits for resources and prompts ([#538](https://github.com/IBM/mcp-context-forge/issues/538)) |
| 52 | + |
| 53 | +• **XSS Prevention** - DOMPurify integration and content sanitization ([#336](https://github.com/IBM/mcp-context-forge/issues/336), [#341](https://github.com/IBM/mcp-context-forge/issues/341), [#361](https://github.com/IBM/mcp-context-forge/issues/361)) |
| 54 | + |
| 55 | +• **SQL Injection Prevention** - Database-level security constraints ([#342](https://github.com/IBM/mcp-context-forge/issues/342)) |
| 56 | + |
| 57 | +### 🛠️ Plugin & Middleware Framework |
| 58 | + |
| 59 | +• **Pre/Post Request Hooks** - Extensible plugin system for custom security policies ([#319](https://github.com/IBM/mcp-context-forge/issues/319)) |
| 60 | + |
| 61 | +• **AI Middleware Integration** - Framework for adding LLM-based security capabilities ([#313](https://github.com/IBM/mcp-context-forge/issues/313)) |
| 62 | + |
| 63 | +• **Semantic Tool Filtering** - Intelligent auto-filtering of tools based on context ([#182](https://github.com/IBM/mcp-context-forge/issues/182)) |
| 64 | + |
| 65 | +• **Dynamic Tool Generation** - LLM-powered tool creation with security controls ([#130](https://github.com/IBM/mcp-context-forge/issues/130)) |
| 66 | + |
| 67 | +### 📊 Monitoring & Audit |
| 68 | + |
| 69 | +• **Comprehensive Audit Logging** - Database-backed audit trail for all operations ([#535](https://github.com/IBM/mcp-context-forge/issues/535)) |
| 70 | + |
| 71 | +• **Structured JSON Logging** - Correlation IDs for request tracing ([#300](https://github.com/IBM/mcp-context-forge/issues/300)) |
| 72 | + |
| 73 | +• **Dual Logging Support** - Console and file outputs with rotation policies ([#364](https://github.com/IBM/mcp-context-forge/issues/364)) |
| 74 | + |
| 75 | +• **OpenTelemetry Integration** - OpenLLMetry for comprehensive observability ([#175](https://github.com/IBM/mcp-context-forge/issues/175)) |
| 76 | + |
| 77 | +• **Prometheus Metrics** - Performance and security metrics instrumentation ([#218](https://github.com/IBM/mcp-context-forge/issues/218)) |
| 78 | + |
| 79 | +### 🚨 Rate Limiting & DDoS Protection |
| 80 | + |
| 81 | +• **Gateway-Level Rate Limiting** - Configurable request throttling per client/endpoint ([#257](https://github.com/IBM/mcp-context-forge/issues/257)) |
| 82 | + |
| 83 | +• **Tool Execution Limits** - Resource controls and execution boundaries ([#539](https://github.com/IBM/mcp-context-forge/issues/539)) |
| 84 | + |
| 85 | +• **Circuit Breakers** - Automatic failover for unstable backends ([#301](https://github.com/IBM/mcp-context-forge/issues/301)) |
| 86 | + |
| 87 | +• **Smart Retry Mechanisms** - Exponential backoff with jitter ([#258](https://github.com/IBM/mcp-context-forge/issues/258), [#456](https://github.com/IBM/mcp-context-forge/issues/456)) |
| 88 | + |
| 89 | +### 🔍 Security Testing & Validation |
| 90 | + |
| 91 | +• **SAST/DAST Integration** - Semgrep and OWASP ZAP automated testing ([#259](https://github.com/IBM/mcp-context-forge/issues/259)) |
| 92 | + |
| 93 | +• **Input Validation Test Suite** - Comprehensive security validation tests ([#552](https://github.com/IBM/mcp-context-forge/issues/552)) |
| 94 | + |
| 95 | +• **Fuzz Testing** - Hypothesis, atheris, schemathesis, RESTler ([#256](https://github.com/IBM/mcp-context-forge/issues/256)) |
| 96 | + |
| 97 | +• **Mutation Testing** - Test quality validation with mutmut ([#280](https://github.com/IBM/mcp-context-forge/issues/280)) |
| 98 | + |
| 99 | +• **Security Scanners** - Bandit, grype, nodejsscan integration ([#279](https://github.com/IBM/mcp-context-forge/issues/279), [#415](https://github.com/IBM/mcp-context-forge/issues/415), [#499](https://github.com/IBM/mcp-context-forge/issues/499)) |
| 100 | + |
| 101 | +### 🏗️ Infrastructure Security |
| 102 | + |
| 103 | +• **Zero-Trust Architecture** - Peer gateway health checks with automatic failover ([#424](https://github.com/IBM/mcp-context-forge/issues/424)) |
| 104 | + |
| 105 | +• **Configuration Validation** - Schema enforcement with startup security checks ([#285](https://github.com/IBM/mcp-context-forge/issues/285), [#534](https://github.com/IBM/mcp-context-forge/issues/534)) |
| 106 | + |
| 107 | +• **Security Headers** - Configurable headers and CORS policies ([#344](https://github.com/IBM/mcp-context-forge/issues/344), [#533](https://github.com/IBM/mcp-context-forge/issues/533)) |
| 108 | + |
| 109 | +• **Well-Known URI Handler** - security.txt and robots.txt support ([#540](https://github.com/IBM/mcp-context-forge/issues/540)) |
| 110 | + |
| 111 | +• **Password Policy Engine** - Configurable password and secret policies ([#426](https://github.com/IBM/mcp-context-forge/issues/426)) |
| 112 | + |
| 113 | +• **Graceful Shutdown** - SIGTERM-safe rollouts with connection draining ([#217](https://github.com/IBM/mcp-context-forge/issues/217)) |
| 114 | + |
| 115 | +## Multi-Layered Defense Strategy |
| 116 | + |
| 117 | +MCP Gateway implements a comprehensive, multi-layered security approach with "defense in depth" and "secure by design" principles: |
| 118 | + |
| 119 | +### Security Philosophy |
| 120 | + |
| 121 | +- **Proactive Security**: Security measures are built-in from design phase, not added retroactively |
| 122 | +- **Human + Automated**: Combines 30+ automated security tools with manual code reviews and threat modeling |
| 123 | +- **Continuous Improvement**: Regular updates to security toolchain and practices based on community feedback |
| 124 | +- **Shared Responsibility**: Security across all system components - gateway is one layer in your defense strategy |
| 125 | + |
| 126 | +### Comprehensive Security Pipeline |
| 127 | + |
| 128 | +**Pre-commit Security Gates**: |
| 129 | +- Bandit, Semgrep, Dodgy for security scanning |
| 130 | +- Type checking and code quality enforcement |
| 131 | +- Run `make security-all` locally before pushing |
| 132 | + |
| 133 | +**Continuous Integration Security**: |
| 134 | +- 30+ security scans on every PR |
| 135 | +- CodeQL semantic analysis |
| 136 | +- Gitleaks secret detection |
| 137 | +- Dependency vulnerability scanning |
| 138 | +- Container security assessment |
| 139 | + |
| 140 | +**Runtime Security**: |
| 141 | +- Monitoring and security policies |
| 142 | +- Anomaly detection |
| 143 | +- Incident response procedures |
| 144 | + |
| 145 | +## Security Compliance & Standards |
| 146 | + |
| 147 | +### 🏆 Currently Implemented (v0.4.0) |
| 148 | + |
| 149 | +• **Authentication**: JWT tokens with configurable secrets, Basic Auth support |
| 150 | +• **Input Validation**: Comprehensive validation across all API endpoints using Pydantic |
| 151 | +• **XSS Prevention**: Character restrictions, URL scheme validation, JSON depth limits |
| 152 | +• **Security Scanning**: 30+ security tools integrated, 100% Bandit pass rate |
| 153 | +• **Container Hardening**: Non-root execution, read-only filesystems, minimal base images |
| 154 | +• **Secure Defaults**: Admin UI disabled by default, localhost-only binding |
| 155 | +• **Secret Detection**: Gitleaks, Dodgy integration preventing credential leaks |
| 156 | + |
| 157 | +### 🚀 Upcoming Security Enhancements |
| 158 | + |
| 159 | +**Release 0.5.0 (August 2025)** |
| 160 | +- Enhanced authentication mechanisms |
| 161 | +- Configuration validation framework |
| 162 | +- Comprehensive audit logging |
| 163 | +- Security headers implementation |
| 164 | + |
| 165 | +**Release 0.6.0 (August 2025)** |
| 166 | +- Database-backed authentication |
| 167 | +- Multi-layer caching security |
| 168 | +- Circuit breakers implementation |
| 169 | + |
| 170 | +**Release 0.7.0 (September 2025)** |
| 171 | +- Full RBAC implementation |
| 172 | +- Multi-tenancy support |
| 173 | +- Correlation ID tracking |
| 174 | + |
| 175 | +**Release 0.8.0 (September 2025)** |
| 176 | +- Policy-as-Code engine |
| 177 | +- Advanced guardrails |
| 178 | +- DDoS protection |
| 179 | + |
| 180 | +**Release 0.9.0 (September 2025)** |
| 181 | +- Marketplace security |
| 182 | +- Protocol negotiation |
| 183 | +- Advanced connectivity |
| 184 | + |
| 185 | +**Release 1.0.0 (October 2025)** |
| 186 | +- Security audit completion |
| 187 | +- Production hardening |
| 188 | +- GA security certification |
| 189 | + |
| 190 | +## Production Deployment Security |
| 191 | + |
| 192 | +### ⚠️ Critical Production Requirements |
| 193 | + |
| 194 | +**The Admin UI is development-only and must NEVER be exposed in production**: |
| 195 | +- Designed for localhost-only access with trusted MCP servers |
| 196 | +- Single-user administration without access controls |
| 197 | +- Must be disabled in production: `MCPGATEWAY_UI_ENABLED=false` |
| 198 | + |
| 199 | +### 📋 Production Security Checklist |
| 200 | + |
| 201 | +- [ ] **Disable unused features** (`FEATURES_ROOTS_ENABLED=false`, `FEATURES_PROMPTS_ENABLED=false`, etc.) |
| 202 | +- [ ] **Disable Admin UI and API** (`MCPGATEWAY_UI_ENABLED=false`, `MCPGATEWAY_ADMIN_API_ENABLED=false`) |
| 203 | +- [ ] **Enable authentication** with strong passwords/keys and custom usernames |
| 204 | +- [ ] **Configure TLS/HTTPS** with valid certificates (never HTTP in production) |
| 205 | +- [ ] **Validate all MCP servers** before connecting |
| 206 | +- [ ] **Implement network controls** (firewalls, ingress policies) |
| 207 | +- [ ] **Set rate limits** per endpoint and client |
| 208 | +- [ ] **Configure monitoring** and anomaly detection |
| 209 | +- [ ] **Secure databases** (TLS, strong passwords, restricted access) |
| 210 | +- [ ] **Set resource limits** (CPU, memory) to prevent DoS |
| 211 | +- [ ] **Implement secrets management** (never hardcode credentials) |
| 212 | +- [ ] **Configure CORS policies** appropriately |
| 213 | +- [ ] **Disable debug mode** in production |
| 214 | +- [ ] **Keep gateway updated** to latest version |
| 215 | +- [ ] **Regular security audits** of connected servers |
| 216 | + |
| 217 | +## Security Best Practices |
| 218 | + |
| 219 | +### Gateway as One Layer in Defense-in-Depth |
| 220 | + |
| 221 | +MCP Gateway should be integrated as **one component** in a comprehensive security architecture: |
| 222 | + |
| 223 | +1. **Upstream validation**: Validate and trust all MCP servers before connection |
| 224 | +2. **Gateway validation**: Input/output validation at gateway level |
| 225 | +3. **Downstream validation**: Applications must implement their own security controls |
| 226 | +4. **Network isolation**: Use network policies to restrict access |
| 227 | +5. **Comprehensive monitoring**: Log and alert on suspicious activities |
| 228 | + |
| 229 | +### Integration Requirements |
| 230 | + |
| 231 | +MCP Gateway is **not a standalone product**. Integrate with: |
| 232 | +- API gateways/reverse proxies (auth, rate-limiting, routing) |
| 233 | +- Secrets management systems (Vault, SOPS) |
| 234 | +- Identity and access management (IAM) platforms |
| 235 | +- Logging, monitoring, and SIEM platforms |
| 236 | +- Runtime security and anomaly detection |
| 237 | +- Custom UI/orchestration layers for multi-tenancy |
| 238 | + |
| 239 | +### Developer Security Tools |
| 240 | + |
| 241 | +**Core Security Commands**: |
| 242 | +- `make security-all` - Run all security tools |
| 243 | +- `make security-report` - Generate security report |
| 244 | +- `make security-fix` - Auto-fix issues where possible |
| 245 | +- `make pre-commit` - Run pre-commit hooks locally |
| 246 | +- `make lint` - 30+ linting and security tools |
| 247 | + |
| 248 | +**Individual Security Scanners**: |
| 249 | +- `make bandit` - Python security vulnerabilities |
| 250 | +- `make semgrep` - Semantic code analysis |
| 251 | +- `make dodgy` - Hardcoded secrets detection |
| 252 | +- `make gitleaks` - Git history secrets scan |
| 253 | +- `make pip-audit` - Dependency vulnerabilities |
| 254 | +- `make trivy` - Container security scan |
| 255 | +- `make grype-scan` - Container vulnerability audit |
| 256 | +- `make osv-scan` - Open source vulnerability scan |
| 257 | + |
| 258 | +## Multi-Tenancy Considerations |
| 259 | + |
| 260 | +**MCP Gateway is not yet multi-tenant ready**. For multi-user platforms, implement: |
| 261 | +- User isolation and data segregation |
| 262 | +- Role-Based Access Control (RBAC) |
| 263 | +- Resource cleanup and lifecycle management |
| 264 | +- Tenant-specific validation and limits |
| 265 | +- Per-user audit logging |
| 266 | +- Team/organization management |
| 267 | + |
| 268 | +Deploy as a **single-tenant component** within your larger multi-tenant architecture. |
| 269 | + |
| 270 | +## Security Patching Policy |
| 271 | + |
| 272 | +**⚠️ Disclaimer**: All patching is **best-effort** with no SLAs or commercial support. |
| 273 | + |
| 274 | +- **Critical/High**: Best-effort patches within 1 week (minor version bump) |
| 275 | +- **Medium**: Addressed in next release (~2 weeks) |
| 276 | +- **Low**: Regular maintenance updates (~2-4 weeks) |
| 277 | +- **No backports**: Fixes only applied to latest main branch |
| 278 | +- **No zero-day guarantees**: Users must evaluate and mitigate risks |
| 279 | + |
| 280 | +## Security Contact |
| 281 | + |
| 282 | +For security vulnerabilities, report privately via [GitHub's security reporting](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability): |
| 283 | + |
| 284 | +1. Navigate to Security tab |
| 285 | +2. Click "Report a vulnerability" |
| 286 | +3. Fill out the vulnerability details |
| 287 | + |
| 288 | +For more information, see our [Security Policy](https://github.com/IBM/mcp-context-forge/security/policy). |
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