sdk

The proxy (`withProxy`) component is critical, handling request forwarding, decompression, and header management. While it includes measures like header sanitization and retry limits, any parsing or forwarding vulnerability could be exploited. The `X402MonetizationHook` relies heavily on an external Cronos facilitator (`https://facilitator.cronoslabs.org`) for payment verification and settlement. Trusting this third-party service is a significant security consideration, as its compromise could lead to unauthorized transactions. Private keys are handled directly via CLI arguments or environment variables, necessitating secure management by the user. The `AuthHeadersHook` can inject custom headers, which could be risky if the `resolveAuthHeaders` function is compromised or misconfigured, though the SDK itself doesn't introduce this vulnerability directly.