CVE-2025-32428: Jupyterhub Jupyter-Remote-Desktop-Proxy

Critical severity, CVSS 9.0. EPSS: 0.9% chance of exploitation in the next 30 days.

Jupyter Remote Desktop Proxy allows you to run a Linux Desktop on a JupyterHub. jupyter-remote-desktop-proxy was meant to rely on UNIX sockets readable only by the current user since version 3.0.0, but when used with TigerVNC, the VNC server started by jupyter-remote-desktop-proxy were still accessible via the network. This vulnerability does not affect users having TurboVNC as the vncserver executable. This issue is fixed in 3.0.1.

Affected products

• Jupyterhub Jupyter-Remote-Desktop-Proxy: from 3.0.0, before 3.0.1 (fixed in 3.0.1)

Published 2025-04-15. Last modified 2026-06-17.