incomplete logout in JupyterHub
Description
JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users 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. Upgrade to JupyterHub 1.5. For distributed deployments, it is jupyterhub in the _user_ environment that needs patching. There are no patches necessary in the Hub environment. The only workaround is to make sure that only one JupyterLab tab is open when you log out.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jupyterhubPyPI | >= 1.0.0, < 1.5.0 | 1.5.0 |
Affected products
3- osv-coords2 versions
>= 1.0.0, < 1.5.0+ 1 more
- (no CPE)range: >= 1.0.0, < 1.5.0
- (no CPE)range: >= 1.0.0, < 1.5.0
- Range: >= 1.0.0, < 1.5.0 - jupyterhub (pip)
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-cw7p-q79f-m2v7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41247ghsaADVISORY
- github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27ghsax_refsource_MISCWEB
- github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7ghsax_refsource_CONFIRMWEB
- github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-386.yamlghsaWEB
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