What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-17 · updated 2026-06-17
• Weakness: CWE-427

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.

Affected products

• jupyter nbconvert: through 7.16.6

References

• https://github.com/jupyter/nbconvert/blob/4f61702f5c7524d8a3c4ac0d5fc33a6ac2fa36a7/nbconvert/preprocessors/svg2pdf.py#L104
• https://github.com/jupyter/nbconvert/commit/c9ac1d1040459ed1ff9eb34e9918ce5a87cf9d71
• https://github.com/jupyter/nbconvert/issues/2258
• https://github.com/jupyter/nbconvert/releases/tag/v7.17.0
• https://github.com/jupyter/nbconvert/security/advisories/GHSA-xm59-rqc7-hhvf
• https://www.imperva.com/blog/code-execution-in-jupyter-notebook-exports
• https://www.imperva.com/blog/code-execution-in-jupyter-notebook-exports

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