CVE-2020-26232: Jupyter Server

Medium severity, CVSS 5.4. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Jupyter Jupyter Server: before 1.0.6 (fixed in 1.0.6)

Published 2020-11-24. Last modified 2026-06-17.