CVE-2025-53000: nbconvert has an uncontrolled search path that leads to unauthorized code execution on Windows

December 18, 2025

On Windows, converting a notebook containing SVG output to a PDF results in unauthorized code execution. Specifically, a third party can create a inkscape.bat file that defines a Windows batch script, capable of arbitrary code execution.

When a user runs jupyter nbconvert --to pdf on a notebook containing SVG output to a PDF on a Windows platform from this directory, the inkscape.bat file is run unexpectedly.

References

github.com/advisories/GHSA-xm59-rqc7-hhvf
github.com/jupyter/nbconvert
github.com/jupyter/nbconvert/blob/4f61702f5c7524d8a3c4ac0d5fc33a6ac2fa36a7/nbconvert/preprocessors/svg2pdf.py
nvd.nist.gov/vuln/detail/CVE-2025-53000
www.imperva.com/blog/code-execution-in-jupyter-notebook-exports

Code Behaviors & Features

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