mcp-server

The project demonstrates exceptional security practices across its codebase. Key measures include: - **Comprehensive Input Validation & Sanitization**: Extensive use of `sanitizeInput`, `UnicodeValidator`, `DOMPurify` to prevent XSS, command injection, and Unicode attacks. - **Secure YAML Parsing**: Utilizes `SecureYamlParser` (which wraps `js-yaml` with `FAILSAFE_SCHEMA`) and performs content validation to prevent YAML injection and YAML bomb attacks. - **Path Traversal Protection**: `PathValidator` and other checks are consistently applied to all file system operations. - **ReDoS Prevention**: `SafeRegex` is employed to analyze and mitigate ReDoS vulnerabilities in regex patterns applied to user input. - **Atomic File Operations**: `FileLockManager` ensures data integrity and prevents race conditions during file I/O. - **Memory Content Security**: `Memory` elements implement `TRUST_LEVELS`, sandbox untrusted content, and `BackgroundValidator` performs asynchronous security scanning of memory entries, with detected patterns encrypted. - **Sensitive Data Handling**: GitHub tokens are encrypted at rest using `crypto` and environment variables are heavily relied upon to avoid hardcoded secrets. - **Audit Logging**: `SecurityMonitor` provides comprehensive audit trails for all security-relevant events, aiding in detection and response. - **Resource Limits**: Implements limits on element sizes, parameter counts, and API request rates to prevent denial-of-service (DoS) attacks. Areas for continuous vigilance exist (as with any complex system), but the foundational security architecture is robust and well-implemented.