Open Redirect Affecting jupyterhub package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-ECHOLATEST-JUPYTERHUB-18306945
  • published25 Jul 2026
  • disclosed3 Apr 2026

Introduced: 3 Apr 2026

CVE-2026-33709  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest jupyterhub.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jupyterhub package and not the jupyterhub package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to version 5.4.4, an open redirect vulnerability in JupyterHub allows attackers to construct links which, when clicked, take users to the JupyterHub login page, after which they are sent to an arbitrary attacker-controlled site outside JupyterHub instead of a JupyterHub page, bypassing JupyterHub's check to prevent this. This issue has been patched in version 5.4.4.

CVSS Base Scores

version 3.1