Provide references for CVE-2021-41247.
Where can I find more information about CVE-2021-41247?
References are available at: https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7, https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27.