# @jupyter-notebook/help-extension (npm) vulnerabilities

1 known vulnerability (1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 702
- Dependents: 0
- Registry: https://www.npmjs.com/package/@jupyter-notebook/help-extension

## Advisories (1)

### [CVE-2026-40171](https://cve.now/CVE-2026-40171): Jupyter Notebook and JupyterLab token theft via stored XSS in help command linker

- Severity: High 8.4
- Published: May 6, 2026
- Affected: from 7.0.0, fixed in 7.5.6.

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