Threats Tagged 'cve-2026-6658'
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Threats Tagged 'cve-2026-6658'
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CVE-2026-6658: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in jupyter jupyter/jupyterCVE-2026-6658 0 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 `data_mermaid` block in `share/templates/lab/base.html.j2` renders `text/vnd.mermaid` cell output directly into HTML without escaping, enabling attackers to inject arbitrary HTML/JavaScript by breaking out of the `<pre>` 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. Join the discussion | CVE Database V5 | 06/26/2026, 09:40:30 UTC Added: 06/26/2026, 10:01:18 UTC |
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