Bug 2235740 (CVE-2023-40170) - CVE-2023-40170 python-jupyter-server: improper cross-site credential checks on `/files/` URLs could allow exposure of certain file contents
Summary: CVE-2023-40170 python-jupyter-server: improper cross-site credential checks o...
Keywords:
Status: NEW
Alias: CVE-2023-40170
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2235741 2236244
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-08-29 15:27 UTC by Marian Rehak
Modified: 2023-08-30 19:16 UTC (History)
0 users

Fixed In Version: python-jupyter-server 2.7.2
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Marian Rehak 2023-08-29 15:27:01 UTC 
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.

https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-64x5-55rw-9974
https://github.com/jupyter-server/jupyter_server/commit/87a4927272819f0b1cae1afa4c8c86ee2da002fd
Comment 1 Marian Rehak 2023-08-29 15:27:13 UTC 
Created python-jupyter-server tracking bugs for this issue:

Affects: fedora-38 [bug 2235741]
Note You need to log in before you can comment on or make changes to this bug.