CVE-2023-40170

Name	CVE-2023-40170
Description	jupyter-server is the backend for Jupyter web applications. Improper cross-site credential checks on `/files/` URLs could allow exposure of certain file contents, or accessing files when opening untrusted files via "Open image in new tab". This issue has been addressed in commit `87a49272728` which has been included in release `2.7.2`. Users are advised to upgrade. Users unable to upgrade may use the lower performance `--ContentsManager.files_handler_class=jupyter_server.files.handlers.FilesHandler`, which implements the correct checks.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1057097

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
jupyter-server (PTS)	bullseye	1.2.2-1	vulnerable
	bookworm	1.23.3-1	vulnerable
	sid, trixie	1.23.3-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
jupyter-server	source	experimental	2.9.1-1
jupyter-server	source	(unstable)	(unfixed)			1057097

Notes

[bookworm] - jupyter-server <no-dsa> (Minor issue)
[bullseye] - jupyter-server <no-dsa> (Minor issue)
https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-64x5-55rw-9974
https://github.com/jupyter-server/jupyter_server/commit/87a4927272819f0b1cae1afa4c8c86ee2da002fd (v2.7.2)