CVE-2026-33870

Netty HTTP request smuggling vulnerability (CVE-2026-33870) arises from how Netty versions prior to 4.1.132.Final and 4.2.10.Final parse quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. The IBM and OSS/Ecosystem advisories in the connected...

Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Summary Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Background This vulnerability is a new variant discovered during research into the "Funky Chunks" HTTP request smuggling techniques: - - The original researc...

GHSA-C2JG-HW38-JRQQ Inconsistent Interpretation of HTTP Requests in twisted.web

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: 1. The Content-Length header value could have a + or - prefix. 2. Illegal characters were permitted in chunked extensions, such as the LF \n...

Inconsistent Interpretation of HTTP Requests in twisted.web

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: 1. The Content-Length header value could have a + or - prefix. 2. Illegal characters were permitted in chunked extensions, such as the LF \n...