Use of Web Link to Untrusted Target with window.opener Access Affecting jupyterlab package, versions [,4.4.8)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Sept 2025
- disclosed26 Sept 2025
- creditYaniv-git
Introduced: 26 Sep 2025
NewCVE-2025-59842 (opens in a new tab)How to fix?
Upgrade jupyterlab to version 4.4.8 or higher.
Overview
jupyterlab is a JupyterLab computational environment.
Affected versions of this package are vulnerable to Use of Web Link to Untrusted Target with window.opener Access via the link rendering process in LaTeX typesetters for Markdown files and cells. An attacker can potentially manipulate the behavior of a newly opened browser tab by crafting a link that, when clicked, could allow the new tab to access the window object of the originating page if the noopener attribute is not enforced.
Note:
This is only exploitable if a third-party LaTeX-rendering extension generates links with target=_blank and the user clicks on such a link.