Open Redirect in Jupyter Server
CVE-2020-26232
Jupyter Server before version 1.0.6 has an Open redirect vulnerability. A maliciously crafted link to a jupyter server could redirect the browser to a different website. All jupyter servers are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Jupyter Server — versions < 1.0.6
Weakness classification (CWE)
References
- github.com/jupyter/jupyter_server/security/advisories/GHSA-grfj-wjv9-4f9v (Third Party Advisory)
- github.com/jupyter-server/jupyter_server/commit/3d83e49090289c431da253e2bdb8dc4… (Patch, Third Party Advisory)
- github.com/jupyter-server/jupyter_server/blob/master/CHANGELOG.md (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2020-26232?
- CVE-2020-26232 is a medium-severity vulnerability in Jupyter Server, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.1/10. Published 2020-11-24.
- How severe is CVE-2020-26232?
- Medium severity. CVSS v3 base score is 4.1 out of 10.