Http11Probe

Http11Probe Http11Probe is a compliance and security tester for HTTP/1.1 servers. It throws malformed, ambiguous, and oversized requests at a server over raw TCP sockets and checks how it responds against what RFC 9110 and RFC 9112 actually require. These are the awkward cases like bare LF line...

echteeteepee

HTTP/1 Desync Vulnerability Testing Tools This repository contains defensive security tools for detecting HTTP/1 request smuggling desync vulnerabilities based on groundbreaking research by James Kettle of PortSwigger. Research Attribution This work is directly inspired by and implements techniqu...

CLZero

CLZero A project for fuzzing HTTP/1.1 CL.0 Request Smuggling Attack Vectors. About Thank you to @albinowax, @defparam and @d3d else this tool would not exist. Inspired by the tool Smuggler all attack gadgets adapted from Smuggler and...

http-desync-guardian

Resumen HTTP/1.1 experimentó una larga evolución desde 1991 hasta 2014: HTTP/0.9 – 1991 HTTP/1.0 – 1996 HTTP/1.1 RFC 2068 – 1997 RFC 2616 - 1999...

http-desync-guardian

Overview HTTP/1.1 went through a long evolution since 1991 to 2014: HTTP/0.9 – 1991 HTTP/1.0 – 1996 HTTP/1.1 RFC 2068 – 1997 RFC 2616 - 1999 - 2014...

CVE-2026-100656

A flaw was found in Netty. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service DoS by sending numerous pipelined HTTP/1.1 requests over a single connection while withholding reads. Netty's HTTP server codec stores unanswered requests in an internal queue...

DEBIAN-CVE-2026-100666

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

CVE-2026-100666

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

DEBIAN-CVE-2026-100656

Netty io.netty:netty-codec-http contains an unbounded per-connection queue growth flaw in HttpServerCodec. The codec tracks the HTTP method of each still-unanswered pipelined request; the first 32 entries are bit-packed into a single long, but every additional entry is appended to...

CVE-2026-100658

Rejected reason: This CVE ID has been rejected as a duplicate...

CVE-2026-100656

Rejected reason: This CVE ID has been rejected as a duplicate...

CVE-2026-100666 Netty 4.2.0 through 4.2.16 Response Desynchronization via HttpServerCodec

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

CVE-2026-100666

The io.netty:netty-codec-http component in Netty's HttpServerCodec is vulnerable in versions 4.2.0.Final through 4.2.16.Final and up to 4.1.136.Final . The root cause is that the codec pairs outbound responses with inbound requests by calling pollMethod() once per response, including 1xx informat...

EUVD-2026-87760

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

CVE-2026-100666 Netty 4.2.0 through 4.2.16 Response Desynchronization via HttpServerCodec

Netty's HttpServerCodec io.netty:netty-codec-http in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod once per response, including for 1xx informational responses. If a client...

EUVD-2026-87758

Netty's HTTP/3 codec io.netty:netty-codec-http3 versions 4.2.2.Final through 4.2.17.Final builds the HTTP/3 :authority pseudo-header from the HTTP/1 Host header before considering the authority of an absolute-form HTTP/1 request-target. In HttpConversionUtil.toHttp3HeadersHttpMessage, boolean —...

CVE-2026-100664

The Netty HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.2.Final through 4.2.17.Final is vulnerable to authority confusion . In the HttpConversionUtil.toHttp3Headers method, a non-empty Host header takes precedence over the request-target authority during HTTP/1-to-HTTP/3 conversion, viol...

CVE-2026-100658 Netty before 4.1.138.Final Denial of Service via WebSocketServerExtensionHandler

Netty io.netty:netty-codec-http contains an unbounded per-connection queue in WebSocketServerExtensionHandler. The handler offers an entry to its per-channel validExtensions queue for every inbound HttpRequest, but polls an entry only when the application writes an HttpResponse, and the queue siz...

EUVD-2026-87752

Netty io.netty:netty-codec-http contains an unbounded per-connection queue in WebSocketServerExtensionHandler. The handler offers an entry to its per-channel validExtensions queue for every inbound HttpRequest, but polls an entry only when the application writes an HttpResponse, and the queue siz...

CVE-2026-100658

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