CVE-2026-23527
h3 v1 has Request Smuggling (TE.TE) issue
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 8.9EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
15 ene 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Productos afectados
h3js · h3¿Quieres saber si tu infraestructura está expuesta a esto?
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