Technology · Project Jupyter
Project Jupyter Notebook vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in Project Jupyter Notebook: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-40171, was published on 13 July 2026.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 1
- Exploited in the wild
- 0
About Project Jupyter Notebook
Jupyter Notebook is a web-based interactive computing environment for creating and sharing documents containing code, equations, and visualizations.
Latest Project Jupyter Notebook vulnerabilities
- CVE-2026-40171: PYSEC-2026-2682 - Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSSmediumCVSS 4EPSS 0.7%
- CVE-2026-42557: Jupyter JupyterLab arbitrary command execution via HTML sanitizer bypasscriticalCVSS 9.6EPSS 0.7%
- CVE-2018-19352: PYSEC-2018-18 - Jupyter Notebook before 5.7.2 allows XSS via a crafted directory name because…lowCVSS 3EPSS 1.3%
Most severe Project Jupyter Notebook vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-42557: Jupyter JupyterLab arbitrary command execution via HTML sanitizer bypasscriticalCVSS 9.6EPSS 0.7%
- CVE-2026-40171: PYSEC-2026-2682 - Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSSmediumCVSS 4EPSS 0.7%
- CVE-2018-19352: PYSEC-2018-18 - Jupyter Notebook before 5.7.2 allows XSS via a crafted directory name because…lowCVSS 3EPSS 1.3%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 1 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 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 |
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/notebook.json, 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, "Project Jupyter Notebook vulnerabilities", https://junglewise.ai/threats/technologies/notebook, 26 September 2026.