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...

flounder

configs/ - optional context profiles These JSON files are optional, answer-free context profiles. They are not Flounder product modes and they are not loaded by default. They exist for cases where an operator deliberately wants to give the model a familiar frame for a class of target. File|...

CVE-2026-103995 Lenient parsing of integers for response body and chunk framing

Response body and chunk parsing would handle non-hex or negative integers incorrectly which could result in misinterpreting HTTP response contents...

CVE-2026-103995

The CPython runtime (referenced via GitHub issues) contains a vulnerability in how it parses response bodies and chunks. The software incorrectly handles non-hex or negative integers , which can lead to the misinterpretation of HTTP response contents . This behavior is associated with CWE-444 (HT...

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

Security Advisory: HTTP Request Smuggling via Unparsed Transfer-Encoding Values tinyhttp Assigned CVE ID: CVE-2026-66752 Summary tinyhttp checks only whether a Transfer-Encoding header is present. It never looks at the value. Any value, including codings that are not chunked and coding lists whos...

heartbleed-lab

Heartbleed Lab Educational laboratory for studying the Heartbleed vulnerability CVE-2014-0160 using a real vulnerable OpenSSL environment inside Docker. This project reproduces a vulnerable TLS server using OpenSSL 1.0.1f and implements a custom raw TLS heartbeat client to demonstrate how malform...

CVE-2022-24903-Heap-based-buffer-overflow-Hand-On-Lab

CVE-2022-24903 Hands-On Lab Author: Andrew Beshay Mousa A practical hands-on lab demonstrating the rsyslog heap buffer overflow vulnerability. A practical lab environment to reproduce and understand the rsyslog Heap Buffer Overflow vulnerability CVE-2022-24903 via octet-counted framing in TCP...

mongobleed

MongoDB Compression Leak Lab Safe, Educational Reference CVE : CVE-2025-14847 This repository is an educational lab that demonstrates the concept behind a class of issues often described as “compression framing / size-metadata memory disclosure” in database wire protocols. It is written to suppor...

CLEANSTART-2026-IU54775 Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing

CVE-2026-78660 affects multiple packages. Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. See references for individual vulnerability details...

CVE-2026-115877

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.web.http.HTTPChannel.headerReceived rejects a NUL byte in an HTTP header value but accepts a bare carriage return or bare line feed. Because Twisted splits header lines only on CRLF...

CVE-2026-115877 Twisted: HTTP Request Smuggling in twisted.web via a Bare CR or LF in a Header Value

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.web.http.HTTPChannel.headerReceived rejects a NUL byte in an HTTP header value but accepts a bare carriage return or bare line feed. Because Twisted splits header lines only on CRLF...

CLEANSTART-2026-XI05251 Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing

CVE-2026-78660 affects multiple packages. Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. See references for individual vulnerability details...

CLEANSTART-2026-BZ34965 Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing

CVE-2026-78660 affects multiple packages. Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. See references for individual vulnerability details...

Linux Distros Unpatched Vulnerability : CVE-2026-111816

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Apache Traffic Server forwarded a malformed 302 response that should have been rejected as a parse error, because the Transfer-Encoding: chunked carve-out...

net/http: golang: golang.org/x/net/http2: net/http: HTTP response smuggling via malformed HTTP/2 framing headers

A flaw was found in Go's net/http package. When operating as a reverse proxy, the HTTP/2 implementation does not properly validate framing-related headers in responses received from upstream servers before forwarding them to downstream HTTP/1 clients. A malicious upstream server can exploit this...

DEBIAN-CVE-2026-111816

Apache Traffic Server forwarded a malformed 302 response that should have been rejected as a parse error, because the Transfer-Encoding: chunked carve-out bypassed the rejection path. A response that two peers can read differently is then stored and served, allowing cache poisoning and...

CVE-2026-111816

Apache Traffic Server forwarded a malformed 302 response that should have been rejected as a parse error, because the Transfer-Encoding: chunked carve-out bypassed the rejection path. A response that two peers can read differently is then stored and served, allowing cache poisoning and...

net/http: golang: golang.org/x/net/http2: net/http: HTTP response smuggling via malformed HTTP/2 framing headers

A flaw was found in Go's net/http package. When operating as a reverse proxy, the HTTP/2 implementation does not properly validate framing-related headers in responses received from upstream servers before forwarding them to downstream HTTP/1 clients. A malicious upstream server can exploit this...

CVE-2026-111816

Apache Traffic Server forwarded a malformed 302 response that should have been rejected as a parse error, because the Transfer-Encoding: chunked carve-out bypassed the rejection path. A response that two peers can read differently is then stored and served, allowing cache poisoning and...

CVE-2026-111816

Apache Traffic Server versions 8.0.0 through 8.1.11 , 9.0.0 through 9.2.15 , 10.0.0 through 10.1.4 , and 10.2.0 are vulnerable to a flaw where a malformed 302 response bypasses parse-error rejection. This occurs because the Transfer-Encoding: chunked carve-out allows the server to forward respons...