Vulnerability Description
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.
Related Weaknesses (CWE)
References
- https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-h5v5-8746-g7mm
- https://www.vulncheck.com/advisories/jupyterlab-plugin-manager-lock-rule-enforce
FAQ
What is CVE-2026-73627?
CVE-2026-73627 is a documented vulnerability. JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user t...
How severe is CVE-2026-73627?
CVSS scoring is not yet available for CVE-2026-73627. Check NVD for updates.
Is there a patch for CVE-2026-73627?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.