CVE-2020-26215

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.

How to fix CVE-2020-26215

To remediate CVE-2020-26215, upgrade the affected package to a fixed version below.

• —upgrade to 6.1.5 or later
• —upgrade to 6.1.5 or later
• —upgrade to 6.1.5-1 or later
• —upgrade to 4.2.3-4+deb9u2 or later
• —upgrade to 6.1.5 or later
• —upgrade to 3cec4bbe21756de9f0c4bccf18cf61d840314d74 or later

Is CVE-2020-26215 being exploited?

Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• from 0, < 6.1.5
• from 0, < 6.1.5
• from 0, < 6.1.5-1
• from 0, < 4.2.3-4+deb9u2
• from 0, < 6.1.5
• from 0, < 3cec4bbe21756de9f0c4bccf18cf61d840314d74 | from 0, < 6.1.5

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-26215
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-26215
• PATCHgithub.com/jupyter/notebook
• WEBgithub.com/jupyter/notebook/commit/3cec4bbe21756de9f0c4bccf18cf61d840314d74