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.

INFO

Published Date :

2026-01-15T19:24:20.514Z

Last Modified :

2026-01-15T20:00:06.302Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23527 vulnerability.

Vendors Products
H3
  • H3
H3js
  • H3
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23527.

URL Resource
https://github.com/h3js/h3/commit/618ccf4f37b8b6148bea7f36040471af45bfb097 cve-icon cve-icon cve-icon
https://github.com/h3js/h3/security/advisories/GHSA-mp2g-9vg9-f4cg cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-23527 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-23527 cve-icon
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