CVE-2026-33709

N/A

Description

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.

CVE Details

CVSS v3.1 ScoreN/A

Published4/3/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-601

References

https://github.com/jupyterhub/jupyterhub/releases/tag/5.4.4(security-advisories@github.com)

https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-3vff-hjqv-m7h8(security-advisories@github.com)

IOC Correlations

No correlations recorded

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