cpython: Header injection via newlines in data URL mediatype in Python

Missing newline filtering has been discovered in Python. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...

BIT-LIBPYTHON-2025-15282 Header injection via newlines in data URL mediatype

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype...