CVE-2026-85077 Sanic: HTTP response header injection via missing CR/LF validation in Sanic HTTP/1.1 responses

Sanic is an opensource python web server/framework. Prior to version 24.12.1, and in version 25.12.0, the HTTP/1.1 response pipeline in sanic/response/types.py serializes response header names and values without rejecting carriage-return or line-feed characters. Applications that place...

CVE-2026-85077

Sanic , an open-source Python web server/framework, is affected by an HTTP response header injection vulnerability (CVSS 3.1: 8.2 HIGH ). The root cause resides in the HTTP/1.1 response pipeline in sanic/response/types.py , which serializes header names and values without rejecting carriage-retur...