{"id":"UBUNTU-CVE-2020-26215","details":"Jupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.","modified":"2026-01-30T01:33:43.892196Z","published":"2020-11-18T22:15:00Z","related":["USN-5585-1"],"upstream":["CVE-2020-26215"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26215"},{"type":"REPORT","url":"https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh"},{"type":"REPORT","url":"https://github.com/jupyter/notebook/commit/2e1c56b0c4a903606d4a2eb13e32409296b9799d"},{"type":"REPORT","url":"https://github.com/jupyter/notebook/commit/3cec4bbe21756de9f0c4bccf18cf61d840314d74"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5585-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-26215"}],"affected":[{"package":{"name":"jupyter-notebook","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/jupyter-notebook@5.2.2-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.2-1ubuntu0.1"}]}],"versions":["4.2.3-4","5.1.0-2","5.2.1-2","5.2.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"jupyter-notebook","binary_version":"5.2.2-1ubuntu0.1"},{"binary_name":"python-notebook","binary_version":"5.2.2-1ubuntu0.1"},{"binary_name":"python3-notebook","binary_version":"5.2.2-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26215.json"}},{"package":{"name":"jupyter-notebook","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/jupyter-notebook@6.0.3-2ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3-2ubuntu0.1"}]}],"versions":["5.7.8-1","6.0.0-1","6.0.0-2","6.0.2-1","6.0.3-1","6.0.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"jupyter-notebook","binary_version":"6.0.3-2ubuntu0.1"},{"binary_name":"python3-notebook","binary_version":"6.0.3-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26215.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}