CVE-2026-34715
Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-113
Neutralización incorrecta de secuencias CRLF en cabeceras HTTP (División de respuesta HTTP)
Fecha de publicación:
02/04/2026
Última modificación:
02/04/2026
Descripción
*** Pendiente de traducción *** ewe is a Gleam web server. Prior to version 3.0.6, the encode_headers function in src/ewe/internal/encoder.gleam directly interpolates response header keys and values into raw HTTP bytes without validating or stripping CRLF (\r\n) sequences. An application that passes user-controlled data into response headers (e.g., setting a Location redirect header from a request parameter) allows an attacker to inject arbitrary HTTP response content, leading to response splitting, cache poisoning, and possible cross-site scripting. Notably, ewe does validate CRLF in incoming request headers via validate_field_value() in the HTTP/1.1 parser — but provides no equivalent protection for outgoing response headers in the encoder. This issue has been patched in version 3.0.6.
Impacto
Puntuación base 3.x
5.30
Gravedad 3.x
MEDIA