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

CVE-2026-33709

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-601 Redireccionamiento de URL a sitio no confiable (Open Redirect)
Fecha de publicación:
03/04/2026
Última modificación:
03/04/2026

Descripción

*** Pendiente de traducción *** JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to version 5.4.4, an open redirect vulnerability in JupyterHub allows attackers to construct links which, when clicked, take users to the JupyterHub login page, after which they are sent to an arbitrary attacker-controlled site outside JupyterHub instead of a JupyterHub page, bypassing JupyterHub's check to prevent this. This issue has been patched in version 5.4.4.