Detects and exploits HTTP request smuggling caused by Content-Length/Transfer-Encoding parsing discrepancies between front-end and back-end servers, using Burp Suite Repeater (auto Content-Length disabled), the HTTP Request Smuggler extension, and smuggler.py.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill exploiting-http-request-smugglingnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill exploiting-http-request-smuggling -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill exploiting-http-request-smuggling -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/exploiting-http-request-smugglinggh skill install mukul975/Anthropic-Cybersecurity-Skills exploiting-http-request-smugglinggit clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/exploiting-http-request-smuggling ~/.claude/skills/exploiting-http-request-smuggling # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/exploiting-http-request-smuggling ~/.agents/skills/exploiting-http-request-smuggling # Codex, Cursor, Gemini CLI, Copilot, OpenCode