aiosend: Deserialization of request body before signature verification (Pre-auth DoS) in webhook handler

Vulnerability Description In aiosend/webhook/base.py, the WebhookHandler.feedupdate method performs full deserialization of the incoming JSON via Pydantic before verifying the HMAC signature. Anyone can send a request with an arbitrary body — the server will parse it, spend CPU and memory, and on...

GHSA-7M8F-HGJQ-8GC9 aiosend: Deserialization of request body before signature verification (Pre-auth DoS) in webhook handler

Vulnerability Description In aiosend/webhook/base.py, the WebhookHandler.feedupdate method performs full deserialization of the incoming JSON via Pydantic before verifying the HMAC signature. Anyone can send a request with an arbitrary body — the server will parse it, spend CPU and memory, and on...