Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26232
Reference (s):
- https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v
- URL: https://github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v
- https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106—2020-11-18
- URL: https://github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md#106—2020-11-18
- https://github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc479cbcb157