A vulnerability was found in JupyterLab up to 4.5.9/4.6.1 and classified as problematic . This issue affects some unknown processing of the file jupyterlab/extensions/manager.py of the component PyPI Extension Manager . Executing a manipulation can lead to improper privilege management. This vulnerability is tracked as CVE-2026-73416 . The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.