CVE-2026-49853

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed only the Host header, leaving Authorization, authusername, authpassword, and authmode in place when a redirect changed scheme, host, or port...

CVE-2026-49853 vulnerabilities

Vulnerabilities for packages: mitmproxy...

OESA-2026-2728 python-tornado security update

Tornado is an open source version of the scalable, non-blocking web server and tools. Security Fixes: When SimpleAsyncHTTPClient follows a 3xx redirect, it shallow-copies the original HTTPRequest, rewrites the URL, decrements maxredirects, and removes only the Host header. It does not clear...