JupyterLab vulnerable to potential authentication and CSRF tokens leak
### Impact
Users of JupyterLab who click on a malicious link may get their `Authorization` and `XSRFToken` tokens exposed to a third party when running an older `jupyter-server` version.
### Patches
JupyterLab 4.1.0b2, 4.0.11, and 3.6.7 were patched.
### Workarounds
No workaround has been identified, however users should ensure to upgrade `jupyter-server` to version 2.7.2 or newer which includes a redirect vulnerability fix.
### References
Vulnerability reported by user @davwwwx via the bug bounty program
https://app.intigriti.com/programs/jupyter/jupyter/detail sponsored by the European Commission
https://commission.europa.eu/news/european-commissions-open-source-programme-office-starts-bug-bounties-2022-01-19_en and hosted on the Intigriti platform
https://www.intigriti.com/.