Bug 2046370 (CVE-2021-32797)

Summary:	CVE-2021-32797 JupyterLab: unstrusted notebook can execute on load which could lead to an RCE
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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Fixed In Version:	JupyterLab 3.1.4, JupyterLab 3.0.17, JupyterLab 2.3.2, JupyterLab 2.2.10, JupyterLab 1.2.21	Doc Type:	If docs needed, set a value
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Bug Depends On:
Bug Blocks:	2046371

Description Michael Kaplan 2022-01-26 16:34:15 UTC

JupyterLab is a user interface for Project Jupyter which will eventually replace the classic Jupyter Notebook. In affected versions untrusted notebook can execute code on load. In particular JupyterLab doesn’t sanitize the action attribute of html `<form>`. Using this it is possible to trigger the form validation outside of the form itself. This is a remote code execution, but requires user action to open a notebook.

References: 

https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-4952-p58q-6crx
https://github.com/jupyterlab/jupyterlab/commit/504825938c0abfa2fb8ff8d529308830a5ae42ed