Cross-site Scripting (XSS)

Overview @jupyterlab/help-extension is a JupyterLab - Help Extension Affected versions of this package are vulnerable to Cross-site Scripting XSS via the handling of data-commandlinker-command and data-commandlinker-args attributes in HTML content. An attacker can execute arbitrary commands,...

JupyterLab's command linker attributes in HTML enable one-click command execution from untrusted content

JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with ...

PT-2026-38276

Name of the Vulnerable Software and Affected Versions JupyterLab versions prior to 4.5.7 Jupyter Notebook versions prior to 7.5.6 Description The HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements. Because CommandLinker listens for all click events...

Open Redirect

Overview jupyterlab is a JupyterLab computational environment. Affected versions of this package are vulnerable to Open Redirect in the CommandLinker class. An attacker can steal authentication tokens and gain unauthorized access to user accounts by convincing a user to open a malicious notebook...

Open Redirect

Overview @jupyterlab/help-extension is a JupyterLab - Help Extension Affected versions of this package are vulnerable to Open Redirect in the CommandLinker class. An attacker can steal authentication tokens and gain unauthorized access to user accounts by convincing a user to open a malicious...