EUVD-2025-29450

Malicious code in bioql PyPI...

HTTP Request Smuggling (HRS)

mitmproxy is vulnerable to HTTP request smuggling. The vulnerability is due to mitmproxy embedding python-hyper/h2 ≤ v4.2.0 which has a gap in its HTTP/2 header validation, which allows an attacker to smuggle requests when mitmproxy translates HTTP/2 to HTTP/1...

GHSA-63CX-G855-HVV4 mitmproxy binaries embed a vulnerable python-hyper/h2 dependency

mitmproxy 12.1.1 and below embed python-hyper/h2 ≤ v4.2.0, which has a gap in its HTTP/2 header validation. This enables request smuggling attacks when mitmproxy is in a configuration where it translates HTTP/2 to HTTP/1. For example, this affects reverse proxies to http:// backends. It does not...