CVE-2026-124317
Gravedad CVSS v4.0:
MEDIA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
07/11/2026
Última modificación:
11/11/2026
Descripción
*** Pendiente de traducción *** libexpat through 2.10.0 contains an out-of-bounds read vulnerability in unknown_toUtf8() and unknown_toUtf16() in xmltok.c when handling application-registered unknown encodings. Attackers can supply a document ending in a truncated multibyte sequence so the convert callback reads past the parse buffer, leaking adjacent memory or crashing applications.
Impacto
Puntuación base 4.0
6.30
Gravedad 4.0
MEDIA
Puntuación base 3.x
4.80
Gravedad 3.x
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/libexpat/libexpat
- https://github.com/libexpat/libexpat/blob/a70841d9ffa64ddde29ab824ed6305035ebe4c47/expat/lib/xmltok.c#L1274-L1322
- https://github.com/libexpat/libexpat/pull/1492
- https://www.vulncheck.com/advisories/libexpat-through-2.10.0-out-of-bounds-read-via-unknown-toutf8-and-unknown-toutf16


