CVE-2023-35174: Livebook

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Livebook is a web application for writing interactive and collaborative code notebooks. On Windows, it is possible to open a `livebook://` link from a browser which opens Livebook Desktop and triggers arbitrary code execution on victim's machine. Any user using Livebook Desktop on Windows is potentially vulnerable to arbitrary code execution when they expect Livebook to be opened from browser. This vulnerability has been fixed in version 0.8.2 and 0.9.3.

Affected products

• Livebook Livebook: from 0.8.0, before 0.8.2 (fixed in 0.8.2); from 0.9.0, before 0.9.3 (fixed in 0.9.3)

Published 2023-06-22. Last modified 2026-06-17.