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

CVE-2026-8295

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-190 Desbordamiento o ajuste de enteros
Fecha de publicación:
14/05/2026
Última modificación:
14/05/2026

Descripción

*** Pendiente de traducción *** An integer overflow vulnerability in the simdjson document-builder API allows incorrect buffer size calculations in "string_builder::escape_and_append()" when processing very large input strings on platforms with limited "size_t" width (e.g., 32-bit builds). The overflow can cause insufficient buffer allocation, leading to out-of-bounds memory reads in SIMD routines and potentially resulting in information disclosure, memory corruption, or malformed JSON output.<br /> This vulnerability has been fixed in 4.6.4 release