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

CVE-2026-8829

Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-416 Utilización después de liberación
Fecha de publicación:
04/06/2026
Última modificación:
28/06/2026

Descripción

*** Pendiente de traducción *** HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.<br /> <br /> The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV&amp;#39;s PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.<br /> <br /> The read may disclose adjacent heap contents into the destination SV.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:oalders:html\:\:entities:*:*:*:*:*:perl:*:* 3.84 (excluyendo)