{"cve":"CVE-2025-30167","nvd":{"published":"2025-06-03T17:15:21.520","modified":"2026-06-17T09:08:17.083","status":"Modified","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","score":7.3},"cwes":["CWE-427"],"references":["https://github.com/jupyter/jupyter_core/commit/5e8965600adda6b416692ce7e85ecb2bd814bd52","https://github.com/jupyter/jupyter_core/security/advisories/GHSA-33p9-3p43-82vq"],"products":["jupyter:jupyter_core"],"source":"nvd","synced_at":"2026-10-19T22:02:23.998251710+00:00"},"epss":{"cve":"CVE-2025-30167","score":0.00198,"percentile":0.09672,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-33p9-3p43-82vq","url":"https://osv.dev/vulnerability/GHSA-33p9-3p43-82vq","summary":"Jupyter Core on Windows Has Uncontrolled Search Path Element Local Privilege Escalation Vulnerability","modified":"2026-09-10T03:50:24.754946270Z","packages":[{"ecosystem":"PyPI","name":"jupyter-core","purl":"pkg:pypi/jupyter-core","ranges":["<5.8.1"],"fixed":["5.8.1"]}]},{"id":"PYSEC-2026-1477","url":"https://osv.dev/vulnerability/PYSEC-2026-1477","summary":"Jupyter Core on Windows Has Uncontrolled Search Path Element Local Privilege Escalation Vulnerability","modified":"2026-07-07T17:46:46.038225137Z","packages":[{"ecosystem":"PyPI","name":"jupyter-core","purl":"pkg:pypi/jupyter-core","ranges":["<5.8.1"],"fixed":["5.8.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}