CVE-2020-25613

POC root@kitploit: POST / HTTP/1.1 Host: 127.0.0.1:1080 Content-Type: text/html Content-Length: 129 Connection: keep-alive Transfer-Encoding: 0xb chunked 1 A 0 POST /flag HTTP/1.1 Host: 127.0.0.1:1080 Content-Length: 180 Connection: keep-alive Content-Type: text/html URI:...

Apache2 - Transfer-Encoding Chunked XSS

Apache2 PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 contain a reflected cross-site scripting vulnerability caused by mishandling of chunked transfer-encoding requests in sapi/apache2handler/sapiapache2.c. Attackers can execute malicious scripts via crafted...

CVE-2013-2028-Exploit

CVE-2013-2028 Exploit Vulnerability Details Vulnerable software: Nginx 1.3.9 Vulnerable function: ngxhttpparsechunked CVE-2013-2028 is an integer overflow vulnerability in Nginx's HTTP chunked transfer encoding parser. Under the conditions targeted by this laboratory environment, the vulnerabilit...

Exploit for Out-of-bounds Write in F5 Nginx

CVE-2013-2028 Exploit Vulnerability Details Vulnerable...

CVE-2026-67181-HTTP-Request-Smuggling-via-Transfer-Encoding-Desynchronization-rouille-

Security Advisory: HTTP Request Smuggling via Transfer-Encoding Desynchronization rouille Assigned CVE ID: CVE-2026-67181 Summary rouille::proxy::proxy forwards the client's Transfer-Encoding header to the backend unchanged, but writes the request body that tinyhttp has already de-chunked. It nev...

nodejs-http-transfer-encoding-smuggling-poc

nodejs-http-transfer-encoding-smuggling-poc PoC of HTTP Request Smuggling in nodejs CVE-2020-8287 src/index.js root@kitploit: header: 'Host', '127.0.0.1', 'Transfer-Encoding', 'chunked', 'Transfer-Encoding', 'eee' , body: 'A' header: 'Host', '127.0.0.1' , body: '' data: 'HTTP/1.1 200 OK\r\n' +...

netty: io.netty/netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers

A flaw was found in Netty's HttpObjectDecoder. A remote attacker can exploit this by sending a specially crafted HTTP/1.0 request that includes both Transfer-Encoding: chunked and Content-Length headers. While Netty correctly strips the conflicting Content-Length header for HTTP/1.1 messages, thi...

DEBIAN-CVE-2026-89044

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

CVE-2026-89044

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

CVE-2026-89044 Netty 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final HTTP Request Smuggling via Transfer-Encoding

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

EUVD-2026-75633

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

CVE-2026-89044 Netty 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final HTTP Request Smuggling via Transfer-Encoding

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

CVE-2026-89044

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final contain an HTTP request smuggling vulnerability in the Transfer-Encoding header handling within the HTTP codec. The root cause is a failure to properly validate the final transfer coding: attackers can split ...

HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated

SummaryHTTPX2 can automatically add a Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header. The resulting HTTP/1.1 request contains both framing headers, which can create an ambiguous message boundary and enable request smuggling or connection...

PYSEC-2026-3849 HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated

Summary HTTPX2 can automatically add a Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header. The resulting HTTP/1.1 request contains both framing headers, which can create an ambiguous message boundary and enable request smuggling or connection...

CVE-2025-55315-detection-playground

Here are some tests that can be performed against these services to observe different behavior on GET/POST routes between the patched and unpatched versions of Kestrel. GET against unpatched sends 200 and socket remains open root@kitploit: printf 'GET / HTTP/1.1\r\nHost:...

PT-2026-89523

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

Linux Distros Unpatched Vulnerability : CVE-2026-89044

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the...

CVE-2026-66752-HTTP-Request-Smuggling-via-Unparsed-Transfer-Encoding-Values-tiny_http-

보안 권고: 구문 분석되지 않은 Transfer-Encoding 값으로 인한 HTTP 요청 스머글링 tinyhttp 배정된 CVE ID: CVE-2026-66752 요약 tinyhttp는 Transfer-Encoding 헤더가 존재하는지만 확인합니다. 값을 전혀 확인하지 않습니다. chunked가 아닌 코딩이나 마지막 요소가 chunked가 아닌 코딩 목록을 포함한 모든 값이 본문을 청크 디코딩하게 하며, 동시에 Content-Length는 무시됩니다. 전송 코딩을 올바르게 구문 분석하는 프런트 엔드는 이러한 요청을...

HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated

Summary HTTPX2 can automatically add a Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header. The resulting HTTP/1.1 request contains both framing headers, which can create an ambiguous message boundary and enable request smuggling or connection...