http-smuggling

Detect HTTP request smuggling vulnerabilities via CL.TE, TE.CL, and TE.TE testing.

54|5|Updated May 9, 2026
One-click install
npx skills add https://github.com/jinyimeng01/mastermind-bug-bounty --skill http-smuggling
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: http-smuggling
Source: https://github.com/jinyimeng01/mastermind-bug-bounty/tree/main/skills/http_smuggling
Command: npx skills add https://github.com/jinyimeng01/mastermind-bug-bounty --skill http-smuggling

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps security professionals identify HTTP Request Smuggling vulnerabilities caused by inconsistent parsing between proxies, CDNs, WAFs, and backend servers.

Core Features & Use Cases

  • Smuggling Detection: Tests CL.TE, TE.CL, and TE.TE parsing discrepancies using timing and differential response analysis.
  • Attack Chain Analysis: Evaluates potential impacts including WAF bypass, cache poisoning, and request manipulation scenarios.
  • Use Case: Help an authorized penetration tester validate whether a web application infrastructure contains exploitable HTTP desynchronization issues across multiple proxy layers.

Quick Start

Use the http-smuggling skill to analyze an authorized target for HTTP request smuggling vulnerabilities and generate a validation report.

Frequently Asked Questions about http-smuggling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect HTTP request smuggling vulnerabilities caused by proxy parsing inconsistencies?

To detect HTTP request smuggling vulnerabilities, this Skill analyzes inconsistent request parsing between frontend proxies and backend servers, specifically targeting CL.TE, TE.CL, and TE.TE parsing discrepancies using timing and differential response analysis.

What is the best way to test for CL.TE and TE.CL desync issues during a web security assessment?

Testing for CL.TE and TE.CL desync issues is achieved by applying HTTP protocol analysis and connection reuse testing to identify parsing inconsistencies, validating whether the infrastructure contains exploitable request manipulation scenarios.

Can I use this to evaluate WAF bypass and cache poisoning attack chains?

Yes, you can evaluate WAF bypass and cache poisoning attack chains. The Skill analyzes potential impacts of HTTP desynchronization, validating request manipulation scenarios across multiple proxy layers within an authorized target.

Does HTTP request smuggling detection require differential response evaluation?

Yes, HTTP request smuggling detection requires differential response evaluation. The workflow uses this alongside timing analysis and HTTP protocol analysis to identify parsing flaws and safely validate exploitable desynchronization issues.

How do I generate a safe validation report after identifying request parsing flaws?

To generate a safe validation report after identifying request parsing flaws, the Skill applies authorized web security assessment workflows, documenting CL.TE, TE.CL, and TE.TE testing results and confirming exploitable desynchronization issues safely.

When should I not use HTTP request smuggling testing?

You should not use HTTP request smuggling testing on unauthorized targets. The Skill requires an authorized web security assessment context, strictly applying safe vulnerability reporting workflows to legally validated infrastructure.