Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-129113

Gravedad:
Pendiente de análisis
Tipo:
CWE-191 Subdesbordamiento de entero
Fecha de publicación:
14/11/2026
Última modificación:
14/11/2026

Descripción

*** Pendiente de traducción *** JSON::XS versions from 4.0_00 before 4.05 for Perl corrupt the incremental buffer length by chopping past its end in incr_skip after a top-level number.<br /> <br /> The incremental parser scans any run of digits, signs, dots and exponent markers as one number, but the decoder stops at the end of a valid number, so the parser keeps an offset into bytes it has not decoded. It then empties the buffer without clearing those bytes, and a later incr_parse call without new input reads them again and moves the offset past the end of the buffer. incr_skip, the documented recovery after an error, removes that many bytes and the buffer length wraps.<br /> <br /> A peer sending input such as "1-2" to an incr_parse consumer can make the next read of incr_text exit the process through perl&amp;#39;s uncatchable out-of-memory path.

Impacto

Referencias a soluciones, herramientas e información