{"id":"UBUNTU-CVE-2025-30167","details":"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).","modified":"2026-05-20T16:21:19.879961522Z","published":"2025-06-03T17:15:00Z","upstream":["CVE-2025-30167"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-30167"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-30167"},{"type":"REPORT","url":"https://github.com/jupyter/jupyter_core/security/advisories/GHSA-33p9-3p43-82vq"}],"affected":[{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.0-1","4.4.0-1","4.4.0-2","4.4.0-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.0-2ubuntu0.1~esm1","binary_name":"jupyter"},{"binary_name":"jupyter-core","binary_version":"4.4.0-2ubuntu0.1~esm1"},{"binary_name":"python-jupyter-core","binary_version":"4.4.0-2ubuntu0.1~esm1"},{"binary_version":"4.4.0-2ubuntu0.1~esm1","binary_name":"python3-jupyter-core"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}},{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.0-2","4.6.0-1","4.6.1-1","4.6.2-1ubuntu1","4.6.3-3","4.6.3-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyter","binary_version":"4.6.3-3ubuntu0.1~esm1"},{"binary_version":"4.6.3-3ubuntu0.1~esm1","binary_name":"jupyter-core"},{"binary_version":"4.6.3-3ubuntu0.1~esm1","binary_name":"python3-jupyter-core"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}},{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.1-1","4.9.1-1","4.9.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyter","binary_version":"4.9.1-1ubuntu0.1~esm1"},{"binary_version":"4.9.1-1ubuntu0.1~esm1","binary_name":"jupyter-core"},{"binary_name":"python3-jupyter-core","binary_version":"4.9.1-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}},{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.1-1","5.3.2-1","5.3.2-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyter","binary_version":"5.3.2-1ubuntu1"},{"binary_version":"5.3.2-1ubuntu1","binary_name":"jupyter-core"},{"binary_name":"python3-jupyter-core","binary_version":"5.3.2-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}},{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7.2-5"],"ecosystem_specific":{"binaries":[{"binary_version":"5.7.2-5","binary_name":"jupyter"},{"binary_version":"5.7.2-5","binary_name":"jupyter-core"},{"binary_name":"python3-jupyter-core","binary_version":"5.7.2-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}},{"package":{"name":"jupyter-core","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/jupyter-core?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7.2-5","5.9.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyter","binary_version":"5.9.1-1"},{"binary_name":"jupyter-core","binary_version":"5.9.1-1"},{"binary_version":"5.9.1-1","binary_name":"python3-jupyter-core"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-30167.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}