Descriptionjupyter-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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1057097

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
jupyter-server (PTS)bullseye1.2.2-1vulnerable
sid, trixie1.23.3-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - jupyter-server <no-dsa> (Minor issue)
[bullseye] - jupyter-server <no-dsa> (Minor issue) (v2.7.2)

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