Jupyter Core is a package for the core common functionality of Jupyter projects. Jupyter Core prior to version 4.11.2 contains an arbitrary code execution vulnerability in `jupyter_core` that stems from `jupyter_core` executing untrusted files in CWD. This vulnerability allows one user to run code as another. Version 4.11.2 contains a patch for this issue. There are no known workarounds.
https://www.debian.org/security/2023/dsa-5422
https://security.gentoo.org/glsa/202301-04
https://lists.debian.org/debian-lts-announce/2022/11/msg00022.html
https://github.com/jupyter/jupyter_core/security/advisories/GHSA-m678-f26j-3hrp
https://github.com/jupyter/jupyter_core/commit/1118c8ce01800cb689d51f655f5ccef19516e283