CVE-2026-6658

A vulnerability in jupyter/nbconvert versions = 7.17.0 allows for Cross-site Scripting XSS via unsanitized text/vnd.mermaid output in HTML exports. The datamermaid block in share/templates/lab/base.html.j2 renders text/vnd.mermaid cell output directly into HTML without escaping, enabling attacker...

EUVD-2026-39642

A vulnerability in jupyter/nbconvert versions tag. This vulnerability impacts any server using nbconvert to render notebooks as HTML, allowing attackers to execute arbitrary JavaScript in the context of users viewing the HTML export...