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CVE-2021-41247

CVE-2021-41247 · incomplete logout in JupyterHub

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 3.5 · Low · EPSS 0.8% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • jupyterhub

    Versions
    • >= 1.0.0, < 1.5.0 - jupyterhub (pip): Affected
    • < 1.2.0 - jupyterhub (helm): Affected

    No fix published

  • jupyterhub Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.0.0+ds1-1

    Update to 2.0.0+ds1-1

  • jupyterhub Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.0.0+ds1-1

    Update to 2.0.0+ds1-1

  • jupyterhub Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.0.0+ds1-1

    Update to 2.0.0+ds1-1

  • jupyterhub PyPI

    Versions
    • 1.0.0
    • 1.1.0
    • 1.1.0b1
    • 1.2.0
    • 1.2.0b1
    • 1.2.1
    • 1.2.2
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.4.2
    Affected ranges
    • ECOSYSTEM: ≥ 1.0.0, < 1.5.0

    Update to 1.5.0

  • jupyterhub PyPI

    Versions
    • 1.0.0
    • 1.1.0
    • 1.1.0b1
    • 1.2.0
    • 1.2.0b1
    • 1.2.1
    • 1.2.2
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.4.2
    Affected ranges
    • GIT: < 5ac9e7f73a6e1020ffddc40321fc53336829fe27
    • ECOSYSTEM: ≥ 1.0.0, < 1.5.0

    Update to 1.5.0

Original sources

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