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Details of issue NIXPKGS-2026-1591

NIXPKGS-2026-1591
published 1 month, 1 week ago
Permalink CVE-2026-42266
8.8 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 1 month, 1 week ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    21 packages
    • python312Packages.jupyterlab-git
    • python312Packages.jupyterlab-lsp
    • python312Packages.jupyterlab-vim
    • python313Packages.jupyterlab-git
    • python313Packages.jupyterlab-lsp
    • python313Packages.jupyterlab-vim
    • python314Packages.jupyterlab-git
    • python314Packages.jupyterlab-lsp
    • python314Packages.jupyterlab-vim
    • python312Packages.jupyterlab-server
    • python313Packages.jupyterlab-server
    • python314Packages.jupyterlab-server
    • python312Packages.jupyterlab-widgets
    • python313Packages.jupyterlab-widgets
    • python314Packages.jupyterlab-widgets
    • python312Packages.jupyterlab-pygments
    • python313Packages.jupyterlab-pygments
    • python314Packages.jupyterlab-pygments
    • python312Packages.jupyterlab-execute-time
    • python313Packages.jupyterlab-execute-time
    • python314Packages.jupyterlab-execute-time
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
jupyterlab: Extension Manager API/GUI Policy Discrepancy allowing 3rd party (malicious) extensions install via POST request.

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.

Affected products

jupyterlab
  • ==>= 4.0.0, < 4.5.7

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Ignored packages (21)

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