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High severityOSV Advisory· Published Dec 17, 2025· Updated Feb 18, 2026

nbconvert has an uncontrolled search path that leads to unauthorized code execution on Windows

CVE-2025-53000

Description

The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. Versions of nbconvert up to and including 7.16.6 on Windows have a vulnerability in which 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. This issue has been patched in version 7.17.0.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
nbconvertPyPI
< 7.17.07.17.0

Affected products

32

Patches

Vulnerability mechanics

References

8

News mentions

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