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 の整数オーバーフローにより HTTP スマグリングが可能になる 整数オーバーフローによる HTTP リクエストスマグリング 中国語分析：HAProxy リクエストスマグリング脆弱性（CVE-2021-40346）分析 参照: https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/ ビルド root@kitploit: git clone...

CVE-2021-40346

CVE-2021-40346 CVE-2021-40346 PoC HAProxy HTTP Smuggling 教育目的のみ セットアップ root@kitploit: $ docker build -t cve-2021-40346 . $ docker run --name poc -p 8000:80 -d --rm -it cve-2021-40346 4941e9f23508b497e4cbe334a75e7cdb84c83478522ed85f48db3477f97a6fb4 テスト /admin が拒否されることを確認します。 root@kitploit: $ curl...

EUVD-2023-60690

Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain...

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: Red Hat AMQ Broker 7.13.6 release and security update

Red Hat AMQ Broker 7.13.6 is now available from the Red Hat Customer Portal. 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...

Traefik entrypoint header-name sanitization bypassed via request trailers

Summary Traefik's entrypoint defenses against spoofed trusted header names — aliasHeadersStrategy / underscoreHeadersStrategy in delete or reject mode, and the default forwardedHeaders stripping of client-supplied X-Forwarded- — scan req.Header only and never req.Trailer. An unauthenticated clien...

BurpSuiteHTTPSmuggler

Burp Suite HTTP Smuggler 一个 Burp Suite 扩展，帮助渗透测试人员绕过 WAF 或使用多种技术测试其有效性。 此扩展由 NCC Group 的 Soroush Dalili（@irsdl）开发。 初始版本（v0.1）仅支持 Encoding 功能，该功能手动执行可能相当复杂。 更多详情请参阅参考资料。 后续版本将包含更多技术以及可能的错误修复。 示例截图 参考资料：...

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: 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) is vulnerable to a middleware bypass via unrestricted client-initiated Upgrade: h2c forwarding. Versions 2.11.26–2.11.56 , 3.7.0–3.7.12 , and EOL 3.4.2–3.6 are affected. When a shared backend accepts the h2c upgrade and returns 101 Switch...

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...

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...

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...