Uncontrolled Search Path Element Affecting jupyter-core package, versions [,5.8.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-JUPYTERCORE-10300774
- published4 Jun 2025
- disclosed3 Jun 2025
- creditTrend Micro
Introduced: 3 Jun 2025
NewCVE-2025-30167 (opens in a new tab)How to fix?
Upgrade jupyter-core to version 5.8.0 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Search Path Element due to the shared %PROGRAMDATA% directory being searched for configuration files. An attacker can introduce unintended behavior and affect other users by creating malicious configuration files in the shared directory. This is only exploitable if the system is a shared Windows environment with multiple users and an unprotected %PROGRAMDATA% directory.
Note: The fix version 5.8.0 introduced a regression affecting jupyter-server. It is advised to update to 5.8.1 to avoid the broken functionality.
Workaround
This vulnerability can be mitigated by modifying the permissions on the %PROGRAMDATA% directory so it is not writable by unauthorized users. Alternatively, an administrative user can create the %PROGRAMDATA%\jupyter directory with appropriately restrictive permissions, or set the %PROGRAMDATA% environment variable to a directory with appropriately restrictive permissions.