CVE-2026-73416

This CVE affects JupyterLab (PyPI extension manager) where the blocked_extensions_uris check uses a weaker-than-PyPI normalization, allowing an authenticated user to bypass the blocklist by using a PyPI-equivalent spelling (e.g., JupyterLab.Git for jupyterlab-git). Versions 4.5.0–4.5.10 and 4.6.2...