mcpcan

The project exhibits mixed security practices. Positive aspects include explicit path traversal prevention during archive extraction, robust CORS handling, and HMAC-SHA256 for internal API security middleware. However, several critical issues lower the overall score: 1. A hardcoded JWT token in `backend/pkg/mcpcansaas/client.go` is used for accessing an external SaaS platform (`mcpcan.com`), posing a significant risk if compromised. 2. The `backend/pkg/qm/signature.go` file contains a function for signature generation using MD5, a cryptographically broken hash function, though its usage appears commented out in the `client.go`. If enabled, this would be a severe vulnerability. 3. The `backend/pkg/dify` package (Go port of a Python module) uses SHA-1 for OAEP padding, which is an outdated cryptographic hash function. 4. Example configuration files (`backend/config-example/*.yaml`) contain default passwords and a generic `dev-app-secret` which, if not changed in production deployments, can easily lead to compromise. The `init` service also contains default admin credentials.