{"id":"CVE-2019-10856","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-10856","generatedAt":"2026-10-28T23:58:41.285Z","title":"In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc.","description":"In Jupyter Notebook before 5.7.8, an open redirect can occur via an empty netloc. This issue exists because of an incomplete fix for CVE-2019-10255.","published":"2019-04-04T16:29:03.000Z","lastModified":"2026-06-17T02:11:45.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-601"],"affected":["jupyter/notebook"],"epss":{"score":0.01264,"percentile":0.69566,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.26%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4","tags":["Exploit","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/jupyter/notebook/compare/16cf97c...b8e30ea","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.jupyter.org/open-redirect-vulnerability-in-jupyter-jupyterhub-adf43583f1e4","tags":["Exploit","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/jupyter/notebook/compare/16cf97c...b8e30ea","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-10856","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}