PyPI/notebook CVE-2026-40171: high 8.4, EPSS 0.48%
Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSS
Action: Upgrade notebook to 7.5.6 or later.
pip install notebook==7.5.6Affected
| introduced | fixed | last affected |
|---|---|---|
| 7.0.0 | 7.5.6 | - |
Fixed versions
| 7.5.6 |
Sources
- osv: GHSA-rch3-82jr-f9w9#PyPI/notebook
- nvd: CVE-2026-40171
- https://github.com/jupyter/notebook/security/advisories/GHSA-rch3-82jr-f9w9
- https://github.com/jupyter/notebook
- https://jupyterlab.readthedocs.io/en/latest/user/commands.html#commands-in-markdown-output-and-files
CVE-2026-40171 · published · modified · JSON