Technology · PyPI
nbconvert (PyPI) vulnerabilities
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Junglewise Threat Intelligence has tracked 6 vulnerabilities in nbconvert (PyPI): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-114140, was published on 21 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About nbconvert (PyPI)
nbconvert is a Python tool for converting Jupyter notebooks to various file formats.
Latest nbconvert (PyPI) vulnerabilities
- CVE-2026-114140: Jupyter nbconvert path traversal via output filename metadatahighCVSS 4EPSS 0.3%
- CVE-2025-53000: PYSEC-2026-1691 - nbconvert has an uncontrolled search path that leads to unauthorized code execution on WindowsmediumCVSS 4EPSS 0.3%
- CVE-2026-6658: Jupyter nbconvert Cross-site Scripting in Mermaid HTML exportmediumCVSS 5.4EPSS 0.2%
- CVE-2026-39378: nbconvert has an Arbitrary File Read via Path Traversal in HTMLExporter Image EmbeddingmediumCVSS 6.5EPSS 0.3%
- CVE-2026-39377: nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment FilenamesmediumCVSS 6.5EPSS 0.3%
- CVE-2021-32862: nbconvert vulnerable to cross-site scripting (XSS) via multiple exploit pathslowCVSS 3.1EPSS 1.4%
Most severe nbconvert (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-114140: Jupyter nbconvert path traversal via output filename metadatahighCVSS 4EPSS 0.3%
- CVE-2026-39378: nbconvert has an Arbitrary File Read via Path Traversal in HTMLExporter Image EmbeddingmediumCVSS 6.5EPSS 0.3%
- CVE-2026-39377: nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment FilenamesmediumCVSS 6.5EPSS 0.3%
- CVE-2026-6658: Jupyter nbconvert Cross-site Scripting in Mermaid HTML exportmediumCVSS 5.4EPSS 0.2%
- CVE-2025-53000: PYSEC-2026-1691 - nbconvert has an uncontrolled search path that leads to unauthorized code execution on WindowsmediumCVSS 4EPSS 0.3%
- CVE-2021-32862: nbconvert vulnerable to cross-site scripting (XSS) via multiple exploit pathslowCVSS 3.1EPSS 1.4%
Vulnerabilities per week
1 vulnerability in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 1 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many nbconvert (PyPI) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/nbconvert)<a href="https://junglewise.ai/threats/technologies/nbconvert"><img src="https://junglewise.ai/threats/technologies/nbconvert/badge.svg" alt="nbconvert (PyPI) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/nbconvert.json, and this page as text at https://junglewise.ai/threats/technologies/nbconvert.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "nbconvert (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/nbconvert, 13 November 2026.