{"cve":"CVE-2020-26215","nvd":{"published":"2020-11-18T22:15:11.947","modified":"2026-06-17T03:07:50.370","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-601"],"references":["https://github.com/jupyter/notebook/commit/3cec4bbe21756de9f0c4bccf18cf61d840314d74","https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh","https://lists.debian.org/debian-lts-announce/2020/12/msg00004.html","https://github.com/jupyter/notebook/commit/3cec4bbe21756de9f0c4bccf18cf61d840314d74","https://github.com/jupyter/notebook/security/advisories/GHSA-c7vm-f5p4-8fqh"],"products":["debian:debian_linux","jupyter:notebook"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-26215","score":0.01228,"percentile":0.68878,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c7vm-f5p4-8fqh","url":"https://osv.dev/vulnerability/GHSA-c7vm-f5p4-8fqh","summary":"Open redirect in Jupyter Notebook","modified":"2026-09-10T03:48:35.602791913Z","packages":[{"ecosystem":"PyPI","name":"notebook","purl":"pkg:pypi/notebook","ranges":["<6.1.5"],"fixed":["6.1.5"]}]},{"id":"PYSEC-2020-215","url":"https://osv.dev/vulnerability/PYSEC-2020-215","summary":"","modified":"2025-10-09T07:06:38.322155Z","packages":[{"ecosystem":"PyPI","name":"notebook","purl":"pkg:pypi/notebook","ranges":["<6.1.5"],"fixed":["6.1.5"]}]}],"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."]}