TornadoWebServer Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') V (CVE-2024-14029)
Description
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.