Vulnerability Description
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).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jupyter | Jupyter Core | < 5.8.0 |
Related Weaknesses (CWE)
References
- https://github.com/jupyter/jupyter_core/commit/5e8965600adda6b416692ce7e85ecb2bd
- https://github.com/jupyter/jupyter_core/security/advisories/GHSA-33p9-3p43-82vqVendor Advisory
FAQ
What is CVE-2025-30167?
CVE-2025-30167 is a vulnerability with a CVSS score of 7.3 (HIGH). 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 configu...
How severe is CVE-2025-30167?
CVE-2025-30167 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-30167?
Check the references section above for vendor advisories and patch information. Affected products include: Jupyter Jupyter Core.