CVE-2026-66731
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-125
Lectura fuera de límites
Fecha de publicación:
27/07/2026
Última modificación:
27/07/2026
Descripción
*** Pendiente de traducción *** facil.io 0.7.5 through 0.7.6 contains a denial-of-service vulnerability in the HTTP/1.1 chunked transfer encoding parser that allows unauthenticated remote attackers to crash the server by sending a negative chunk size value. Attackers can send a single POST request with a Transfer-Encoding: chunked header containing a leading minus sign in the chunk size field, causing the parser in http1_parser.h to compute a large positive integer from the negated value, corrupting internal state and moving the read pointer into unmapped memory resulting in a fault.
Impacto
Puntuación base 4.0
8.70
Gravedad 4.0
ALTA
Puntuación base 3.x
7.50
Gravedad 3.x
ALTA



