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Exploiting HTTP Parser Inconsistencies: ACL Bypasses, SSRF, and Cache Poisoning

Original text: “Exploiting HTTP Parsers Inconsistencies” — Rafa, Rafa’s Security Researches (research conducted December 2021 – April 2022). Code blocks, tables and figures below are reproduced verbatim with attribution captions.

Executive Summary

HTTP is the connective tissue of the modern web, but the specification leaves enough ambiguity that no two parsers agree on every edge…

https://core-jmp.org/2026/07/exploiting-http-parser-inconsistencies/

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July 28, 2026 6.2K 51