{"id":"UBUNTU-CVE-2024-41942","details":"JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is granted the `admin:users` scope, they may escalate their own privileges by making themselves a full admin user. The impact is relatively small in that `admin:users` is already an extremely privileged scope only granted to trusted users. In effect, `admin:users` is equivalent to `admin=True`, which is not intended. Note that the change here only prevents escalation to the built-in JupyterHub admin role that has unrestricted permissions. It does not prevent users with e.g. `groups` permissions from granting themselves or other users permissions via group membership, which is intentional. Versions 4.1.6 and 5.1.0 fix this issue.","modified":"2026-05-20T16:18:07.545264243Z","published":"2024-08-08T15:15:00Z","upstream":["CVE-2024-41942"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-41942"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-41942"},{"type":"REPORT","url":"https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-9x4q-3gxw-849f"},{"type":"REPORT","url":"https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428"},{"type":"REPORT","url":"https://github.com/jupyterhub/jupyterhub/commit/ff2db557a85b6980f90c3158634bf924063ab8ba"},{"type":"REPORT","url":"https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428"},{"type":"REPORT","url":"https://github.com/jupyterhub/jupyterhub/commit/ff2db557a85b6980f90c3158634bf924063ab8ba"}],"affected":[{"package":{"name":"jupyterhub","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/jupyterhub?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0+ds1-1","2.0.0+ds1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyterhub","binary_version":"2.0.0+ds1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-41942.json"}},{"package":{"name":"jupyterhub","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/jupyterhub?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.0+ds1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.0+ds1-1","binary_name":"jupyterhub"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-41942.json"}},{"package":{"name":"jupyterhub","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/jupyterhub?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.1+ds1-2","5.2.1+ds1-3","5.2.1+ds1-4"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyterhub","binary_version":"5.2.1+ds1-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-41942.json"}},{"package":{"name":"jupyterhub","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/jupyterhub?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.1+ds1-4"],"ecosystem_specific":{"binaries":[{"binary_version":"5.2.1+ds1-4","binary_name":"jupyterhub"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-41942.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}