CVE-2024-28233: PYSEC-2026-1480 - Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing

CVE-2024-28233 · Severity: low · CVSS 3.1 · Published 2026-07-07

Cross site scripting (XSS) in JupyterHub via Self-XSS leveraged by Cookie Tossing

Technologies: jupyterhub (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2024-28233 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-28233 being exploited in the wild.
How severe is CVE-2024-28233?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
jupyterhub (PyPI) ECOSYSTEM:introduced=0,fixed=4.1.0.
Is there a fix for CVE-2024-28233?
Yes. jupyterhub (PyPI): upgrade to 4.1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-28233?
Check whether you run jupyterhub (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • jupyterhub (PyPI): upgrade to 4.1.0 or later
    pip install "jupyterhub>=4.1.0"

Affected products

  • jupyterhub (PyPI) ECOSYSTEM:introduced=0,fixed=4.1.0

Identifiers

  • CVE-2024-28233
  • GHSA-7r3h-4ph8-w38g
  • PYSEC-2026-1480

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