CVE-2023-40170
low-risk
Published 2023-08-28
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.
Do I need to act?
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0.63% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.6/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Jupyter Server
Affected Vendors
References (8)
26
/ 100
low-risk
Severity
19/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal