| Description: | Twisted is an event-based framework for internet applications,
supporting Python 3.6+. Prior to version 22.4.0rc1, the Twisted Web
HTTP 1.1 server, located in the `twisted.web.http` module, parsed
several HTTP request constructs more leniently than permitted by RFC
7230. This non-conformant parsing can lead to desync if requests pass
through multiple HTTP parsers, potentially resulting in HTTP request
smuggling. Users who may be affected use Twisted Web's HTTP 1.1 server
and/or proxy and also pass requests through a different HTTP server
and/or proxy. The Twisted Web client is not affected. The HTTP 2.0
server uses a different parser, so it is not affected. The issue has
been addressed in Twisted 22.4.0rc1. Two workarounds are available:
Ensure any vulnerabilities in upstream proxies have been addressed,
such as by upgrading them; or filter malformed requests by other
means, such as configuration of an upstream proxy.
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