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-2026-88008 Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect Authorization

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...

CVE-2026-88008

Traefik (open source HTTP reverse proxy and load balancer) versions 2.11.26 through 2.11.57 and 3.7.13 forward a client-supplied Connection header requesting Upgrade: h2c along with HTTP2-Settings to a shared backend. If that backend accepts h2c and returns 101 Switching Protocols , Traefik enter...

CVE-2021-40346

CVE-2021-40346 CVE-2021-40346 PoC HAProxy HTTP Smuggling For educational purposes only Setup root@kitploit: $ docker build -t cve-2021-40346 . $ docker run --name poc -p 8000:80 -d --rm -it cve-2021-40346 4941e9f23508b497e4cbe334a75e7cdb84c83478522ed85f48db3477f97a6fb4 Test Confirm /admin is...

Apache Tomcat - HTTP Request Smuggling

Apache Tomcat from versions 8.5.0 to 8.5.93, 9.0.0-M1 to 9.0.81, 10.1.0-M1 to 10.1.13, and 11.0.0-M1 to 11.0.0-M11 contain an improper input validation caused by incorrect parsing of HTTP trailer headers, letting attackers craft headers to cause request smuggling, exploit requires sending malicio...

smugglefuzz

SmuggleFuzz SmuggleFuzz, a configurable and rapid HTTP downgrade smuggling scanner. Empowering users with customizable gadget lists, it offers deeper insights into the reasons behind failed smuggling attacks. I am confident that numerous HTTP downgrade-based smuggling vulnerabilities remain...

CVE-2021-40346-POC

CVE-2021-40346-POC CVE-2021-40346 integer overflow enables http smuggling 整数溢出导致的http请求走私 中文分析：HAProxy请求走私漏洞（CVE-2021-40346）分析 Reference: https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/ Build root@kitploit: git clone...

CVE-2026-54745

A flaw was found in Kubeflow Pipelines. An unauthenticated attacker can exploit a Server-Side Request Forgery SSRF and HTTP smuggling vulnerability through the /proxy/ route. This allows the attacker to bypass authorization and forward arbitrary requests to internal services. Consequently, this c...

CVE-2026-81356

Visual Studio Code is affected by an HTTP request/response smuggling vulnerability caused by inconsistent interpretation of HTTP requests. An unauthorized attacker can exploit this over a network to bypass a security feature , requiring user interaction. The Microsoft CVSS 3.1 score is 8.2 (HIGH)...

Visual Studio Code Security Feature Bypass Vulnerability

Inconsistent interpretation of http requests 'http request/response smuggling' in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network...

CVE-2019-20372

CVE-2019-20372 This repository is for educational purposes only. /server vulnerable server run ./server.sh /exploit.py exploit script run python3 exploit.py importante! https://blkcipher.pl/assets/pdfs/2019-12-10-errorpagerequestsmuggling.pdf https://github.com/vuongnv3389-sec/CVE-2019-20372 why...

CVE-2021-3064

CVE-2021-3064: Pan-OS Remote Buffer Overflow + HTTP Smuggling Exploit This exploit uses an HTTP Smuggling vuln to deliver a payload to an otherwise inaccessible endpoint on Pan-OS firewalls; the endpoint is vulnerable to an overflow that can be exploited to run arbitrary code as root on the...

node-poc-http-smuggling

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Important: Red Hat Security Advisory: Satellite 6.18.9 Async Update

A new release is now available for Red Hat Satellite 6.18 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

BurpSuiteHTTPSmuggler

Burp Suite HTTP Smuggler A Burp Suite extension to help pentesters to bypass WAFs or test their effectiveness using a number of techniques. This extension has been developed by Soroush Dalili @irsdl from NCC Group. The initial release v0.1 only supports the Encoding capability that can be quite...

AZL-98460 CVE-2026-66357 affecting package erlang for versions less than 26.2.5.21-6

httpd has never implemented obs-fold RFC 2616 §2.2 / RFC 7230 §3.2.4 header continuation lines. Every CRLF followed by a non-CRLF octet unconditionally starts a new header. This missing feature became a security concern as the understanding of HTTP request smuggling attacks evolved. This issue...

EEF-CVE-2026-73812 inets, httpd: HTTP Request Smuggling via Transfer-Encoding and Content-Length

Summary httpd function checkheader/3 rejects duplicate Content-Length per CVE-2026-23941 but never checks for the TE+CL co-presence that RFC 9112 §6.3 identifies as a probable smuggling attempt. handlebody/3 frames by chunked and silently discards Content-Length. A CL-preferring front-end paired...

Important: dotnet8.0

Issue Overview: Inconsistent interpretation of http requests 'http request/response smuggling' in .NET allows an unauthorized attacker to bypass a security feature over a network. CVE-2026-62899 Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized...

Important: dotnet9.0

Issue Overview: Inconsistent interpretation of http requests 'http request/response smuggling' in .NET allows an unauthorized attacker to bypass a security feature over a network. CVE-2026-62899 Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized...

Important: dotnet10.0

Issue Overview: Inconsistent interpretation of http requests 'http request/response smuggling' in .NET allows an unauthorized attacker to bypass a security feature over a network. CVE-2026-62899 Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized...