CVE-2024-14029 [HIGH] – Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating reques

Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequent request. Attackers can exploit this inconsistency when Tornado is deployed behind proxies to perform HTTP request smuggling, enabling access control bypass, cache poisoning, or connection desynchronization.