CVE-2026-3298
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-787
Escritura fuera de límites
Fecha de publicación:
21/04/2026
Última modificación:
21/04/2026
Descripción
*** Pendiente de traducción *** The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. This allowed for an out-of-bounds buffer write if data was larger than the buffer size. Non-Windows platforms are not affected.
Impacto
Puntuación base 4.0
8.80
Gravedad 4.0
ALTA
Referencias a soluciones, herramientas e información
- https://github.com/python/cpython/commit/1274766d3c29007ab77245a72abbf8dce2a9db4d
- https://github.com/python/cpython/commit/27522b7d6e6588f03e61099dd858cd5a9314e2f2
- https://github.com/python/cpython/commit/95633d2aad4721e25e4dfd9f43dfb6e1edcbd741
- https://github.com/python/cpython/issues/148808
- https://github.com/python/cpython/pull/148809
- https://mail.python.org/archives/list/security-announce@python.org/thread/KWTPIQBOOOUNQP7UFSLBI437NJDFLA3F/



