Jupyter Server Proxy vulnerable to reflected XSS attack
CVE-2024-35225

6.1MEDIUM

Key Information:

Vendor

Jupyterhub

Status
Jupyter-server-proxy
Vendor
CVE Published:
11 June 2024

What is CVE-2024-35225?

Jupyter Server Proxy has a vulnerability allowing unauthorized third-party actors to run arbitrary JavaScript in users' JupyterLab instances through a reflected cross-site scripting (XSS) flaw. This occurs when the /proxy endpoint is called with an invalid host value, enabling attackers to send phishing links containing custom JavaScript. Users who click on these links inadvertently expose their JupyterLab to malicious code execution, highlighting significant security concerns. Updates in versions 4.2.0 and 3.2.4 address this issue, and server operators unable to upgrade can mitigate risks by disabling the jupyter-server-proxy extension.

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Deploy the Patch

Affected Version(s)

jupyter-server-proxy >= 3.0.0, < 3.2.4 < 3.0.0, 3.2.4

jupyter-server-proxy >= 4.0.0, < 4.2.0 < 4.0.0, 4.2.0

References

https://github.com/jupyterhub/jupyter-server-proxy/securi...
x_refsource_CONFIRM
https://github.com/jupyterhub/jupyter-server-proxy/commit...
x_refsource_MISC
https://github.com/jupyterhub/jupyter-server-proxy/commit...
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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