Bug 2024189 (CVE-2021-41247) - CVE-2021-41247 juptyerhub: Incomplete JupyterHub logout with simultaneous JupyterLab sessions
Summary: CVE-2021-41247 juptyerhub: Incomplete JupyterHub logout with simultaneous Jup...
Keywords:
Status: NEW
Alias: CVE-2021-41247
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2022357
TreeView+ depends on / blocked
 
Reported: 2021-11-17 14:21 UTC by Pedro Sampaio
Modified: 2023-07-07 08:31 UTC (History)
0 users

Fixed In Version: jupyterhub 1.5
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description Pedro Sampaio 2021-11-17 14:21:20 UTC 
Users of JupyterLab with JupyterHub who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credentials (for the single-user server only, not the Hub) reinstated after logout, if another active JupyterLab session is open while the logout takes place.

Upstream commit:

https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27

References:

https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7
Comment 1 juneau 2021-11-17 17:28:50 UTC 
Marking RHODS affected due to presence of affected code. Deferring to engineering as impact is moderate.
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