BIT-jupyterhub-2021-41247

    Dashboard / Vulnerabilities / BIT-jupyterhub-2021-41247

    BIT-jupyterhub-2021-41247

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: incomplete logout in JupyterHub

    Details: 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.

    References: https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27, https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7, https://nvd.nist.gov/vuln/detail/CVE-2021-41247

    Affected packages

    Package

    Name: jupyterhub

    Purl: pkg:bitnami/jupyterhub

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.0.0
    Fixed -1.5.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-jupyterhub-2021-41247 | CVE-DB