CVE-2026-56817
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-611
Restricción incorrecta de referencia a entidad externa XML (XXE)
Fecha de publicación:
21/07/2026
Última modificación:
22/07/2026
Descripción
*** Pendiente de traducción *** Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Impacto
Puntuación base 4.0
8.30
Gravedad 4.0
ALTA
Referencias a soluciones, herramientas e información
- https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b
- https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6
- https://github.com/netty/netty/releases/tag/netty-4.1.136.Final
- https://github.com/netty/netty/releases/tag/netty-4.2.16.Final
- https://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx