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CVE-2025-30167

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Date: June 3, 2025

Jupyter Core is a package for the core common functionality of Jupyter projects. When using Jupyter Core prior to version 5.8.0 on Windows, the shared "%PROGRAMDATA%" directory is searched for configuration files ("SYSTEM_CONFIG_PATH" and "SYSTEM_JUPYTER_PATH"), which may allow users to create configuration files affecting other users. Only shared Windows systems with multiple users and unprotected "%PROGRAMDATA%" are affected. Users should upgrade to Jupyter Core version 5.8.0 or later to receive a patch. Some other mitigations are available. As administrator, modify the permissions on the "%PROGRAMDATA%" directory so it is not writable by unauthorized users; or as administrator, create the "%PROGRAMDATA%\jupyter" directory with appropriately restrictive permissions; or as user or administrator, set the "%PROGRAMDATA%" environment variable to a directory with appropriately restrictive permissions (e.g. controlled by administrators or the current user).

Severity Score

Severity Score

Weakness Type (CWE)

Uncontrolled Search Path Element

CWE-427

Top Fix

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Upgrade Version

Upgrade to version jupyter-core - 5.8.0;jupyter_core - 5.8.1

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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