Description


H3 is a minimal H(TTP) framework built for high performance and portability. Prior to 1.15.5, there is a critical HTTP Request Smuggling vulnerability. readRawBody is doing a strict case-sensitive check for the Transfer-Encoding header. It explicitly looks for "chunked", but per the RFC, this header should be case-insensitive. This vulnerability is fixed in 1.15.5.

Related CPE's


Weaknesses



CWE-444

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

8.9 · High

Information


Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-15T20:16:05.620Z

1 month ago

Last modified

2026-01-23T18:50:35.587Z

3 weeks ago