PyPI/jupyterlab CVE-2026-42557: critical 9.6, EPSS 0.37%
JupyterLab's command linker attributes in HTML enable one-click command execution from untrusted content
Action: Upgrade jupyterlab to 4.5.7 or later.
pip install jupyterlab==4.5.7Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.5.7 | - |
Fixed versions
| 4.5.7 |
Sources
- osv: GHSA-mqcg-5x36-vfcg
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-mqcg-5x36-vfcg
- https://nvd.nist.gov/vuln/detail/CVE-2026-42557
- https://github.com/jupyterlab/jupyterlab
- https://jupyterlab.readthedocs.io/en/latest/user/commands.html#commands-in-markdown-files
CVE-2026-42557 · published · modified · JSON