CVE-2026-2703
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-189
Errores numéricos
Fecha de publicación:
19/02/2026
Última modificación:
19/02/2026
Descripción
*** Pendiente de traducción *** A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.
Impacto
Puntuación base 4.0
4.80
Gravedad 4.0
MEDIA
Puntuación base 3.x
3.30
Gravedad 3.x
BAJA
Puntuación base 2.0
1.70
Gravedad 2.0
BAJA
Referencias a soluciones, herramientas e información
- https://github.com/oneafter/0128/blob/main/xl1/repro
- https://github.com/xlnt-community/xlnt/
- https://github.com/xlnt-community/xlnt/commit/f2d7bf494e5c52706843cf7eb9892821bffb0734
- https://github.com/xlnt-community/xlnt/issues/137
- https://vuldb.com/?ctiid_346649=
- https://vuldb.com/?id_346649=
- https://vuldb.com/?submit_754377=



