CVE-2025-57804

N/A

Descricao

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Prior to version 4.3.0, an HTTP/2 request splitting vulnerability allows attackers to perform request smuggling attacks by injecting CRLF characters into headers. This occurs when servers downgrade HTTP/2 requests to HTTP/1.1 without properly validating header names/values, enabling attackers to manipulate request boundaries and bypass security controls. This issue has been patched in version 4.3.0.

Detalhes CVE

Pontuacao CVSS v3.1N/A

Publicado8/25/2025

Ultima modificacao11/3/2025

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-93

Referencias

https://github.com/python-hyper/h2/commit/035e9899f95e3709af098f578bfc3cd302298e3a(security-advisories@github.com)

https://github.com/python-hyper/h2/security/advisories/GHSA-847f-9342-265h(security-advisories@github.com)

https://lists.debian.org/debian-lts-announce/2025/09/msg00004.html(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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