# CVE-2024-28233: jupyterhub: JupyterHub is an open source multi-user server for Jupyter notebooks

CVE-2024-28233 is fixed in jupyterhub on 1 platform, first by DEBIAN-CVE-2024-28233, released March 27, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-28233
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 27, 2024

## Description

JupyterHub is an open source multi-user server for Jupyter notebooks. By tricking a user into visiting a malicious subdomain, the attacker can achieve an XSS directly affecting the former's session. More precisely, in the context of JupyterHub, this XSS could achieve full access to JupyterHub API and user's single-user server. The affected configurations are single-origin JupyterHub deployments and JupyterHub deployments with user-controlled applications running on subdomains or peer subdomains of either the Hub or a single-user server. This vulnerability is fixed in 4.1.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | jupyterhub Debian 13.5 (trixie) | 5.0.0+ds1-1 | [DEBIAN-CVE-2024-28233](https://patchblox.com/security/data/fix/linux/debian-cve-2024-28233.md) | Mar 27, 2024 |
| Linux | jupyterhub Debian 14 | 5.0.0+ds1-1 | [DEBIAN-CVE-2024-28233](https://patchblox.com/security/data/fix/linux/debian-cve-2024-28233.md) | Mar 27, 2024 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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