# notebook (PyPI) vulnerabilities

Source: https://junglewise.ai/threats/technologies/pypi-notebook  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/pypi-notebook.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 21 vulnerabilities in notebook (PyPI): 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-102832, was published on 13 October 2026. 1 vulnerability in the last four weeks, level on the four before (1).

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 21 (1 critical, 0 exploited in the wild)

## About notebook (PyPI)

Web application for creating, sharing, and executing interactive notebooks containing code and documentation.

## Latest notebook (PyPI) vulnerabilities

- [CVE-2026-102832: JupyterLab command link trust prompt marks wrong document](https://junglewise.ai/threats/cve-2026-102832-jupyterlab-command-link-trust-prompt-in-jupyterlab-can-trust-a) (medium, CVSS 4.2, published 13 Oct 2026)
- [CVE-2026-102831: JupyterLab HTML output sanitization bypass via clipboard paste](https://junglewise.ai/threats/cve-2026-102831-jupyterlab-is-an-extensible-environment-for-interactive-and) (high, CVSS 8.1, published 29 Sep 2026)
- [CVE-2024-43805: PYSEC-2026-2536 - HTML injection in Jupyter Notebook and JupyterLab leading to DOM Clobbering](https://junglewise.ai/threats/cve-2024-43805-html-injection-in-jupyter-notebook-and-jupyterlab-leading-to-dom) (low, CVSS 3.1, published 13 Jul 2026)
- [CVE-2024-22421: PYSEC-2026-2534 - JupyterLab vulnerable to potential authentication and CSRF tokens leak](https://junglewise.ai/threats/cve-2024-22421-jupyterlab-vulnerable-to-potential-authentication-and-csrf-tokens) (low, CVSS 3.1, published 13 Jul 2026)
- [CVE-2024-22420: PYSEC-2026-2535 - JupyterLab vulnerable to SXSS in Markdown Preview](https://junglewise.ai/threats/cve-2024-22420-jupyterlab-vulnerable-to-sxss-in-markdown-preview) (low, CVSS 3.1, published 13 Jul 2026)
- [CVE-2019-9644: PYSEC-2026-2531 - Improper Neutralization of Input During Web Page Generation in Jupyter Notebook](https://junglewise.ai/threats/cve-2019-9644-improper-neutralization-of-input-during-web-page-generation-in) (low, CVSS 3, published 9 Jul 2026)
- [CVE-2021-32797: PYSEC-2026-688 - JupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>](https://junglewise.ai/threats/cve-2021-32797-jupyterlab-xss-due-to-lack-of-sanitization-of-the-action) (low, CVSS 3.1, published 2 Jul 2026)
- [CVE-2019-10255: PYSEC-2026-647 - Open Redirect vulnerability in jupyterhub and notebook](https://junglewise.ai/threats/cve-2019-10255-open-redirect-vulnerability-in-jupyterhub-and-notebook) (low, CVSS 3, published 2 Jul 2026)
- [CVE-2026-42557: Jupyter JupyterLab arbitrary command execution via HTML sanitizer bypass](https://junglewise.ai/threats/cve-2026-42557-jupyter-jupyterlab-arbitrary-command-execution-via-html-sanitizer) (critical, CVSS 9.6, published 13 May 2026)
- [CVE-2026-40171: PYSEC-2026-2682 - Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSS](https://junglewise.ai/threats/cve-2026-40171-jupyter-notebook-authentication-token-theft-via-commandlinker-xss) (medium, CVSS 4, published 6 May 2026)
- [CVE-2022-29238: Token bruteforcing.](https://junglewise.ai/threats/cve-2022-29238-token-bruteforcing) (low, CVSS 3.1, published 14 Jun 2022)
- [CVE-2022-24758: Sensitive Auth & Cookie data stored in Jupyter server logs](https://junglewise.ai/threats/cve-2022-24758-sensitive-auth-cookie-data-stored-in-jupyter-server-logs) (low, CVSS 3.1, published 31 Mar 2022)
- [CVE-2021-32798: Special Element Injection in notebook](https://junglewise.ai/threats/cve-2021-32798-special-element-injection-in-notebook) (low, CVSS 3.1, published 9 Aug 2021)
- [CVE-2020-26215: Open redirect in Jupyter Notebook](https://junglewise.ai/threats/cve-2020-26215-open-redirect-in-jupyter-notebook) (low, CVSS 3.1, published 18 Nov 2020)
- [CVE-2018-21030: Cross-site scripting in Jupyter Notebook](https://junglewise.ai/threats/cve-2018-21030-cross-site-scripting-in-jupyter-notebook) (low, CVSS 3.1, published 31 Oct 2019)
- [CVE-2019-10856: Jupyter Notebook open redirect vulnerability](https://junglewise.ai/threats/cve-2019-10856-jupyter-notebook-open-redirect-vulnerability) (low, CVSS 3, published 4 Apr 2019)
- [CVE-2018-19352: Jupyter Notebook XSS via directory name](https://junglewise.ai/threats/cve-2018-19352-jupyter-notebook-xss-via-directory-name) (low, CVSS 3, published 18 Nov 2018)
- [CVE-2018-19351: Jupyter Notebook XSS via untrusted notebooks](https://junglewise.ai/threats/cve-2018-19351-jupyter-notebook-xss-via-untrusted-notebooks) (low, CVSS 3, published 18 Nov 2018)
- [CVE-2018-8768: PYSEC-2018-57 - In Jupyter Notebook before 5.4.1, a maliciously forged notebook file can bypass sanitization to execute…](https://junglewise.ai/threats/cve-2018-8768-jupyter-notebook-file-bypasses-sanitization-executes-javascript) (low, CVSS 3, published 18 Mar 2018)
- [CVE-2015-7337: Improper Input Validation in Jupyter Notebook](https://junglewise.ai/threats/cve-2015-7337-improper-input-validation-in-jupyter-notebook) (low, CVSS 3.1, published 29 Sep 2015)
- [CVE-2015-6938: Improper Neutralization of Input During Web Page Generation in Jupyter Notebook](https://junglewise.ai/threats/cve-2015-6938-improper-neutralization-of-input-during-web-page-generation-in) (low, CVSS 3.1, published 21 Sep 2015)

## Most severe notebook (PyPI) vulnerabilities

- [CVE-2026-42557: Jupyter JupyterLab arbitrary command execution via HTML sanitizer bypass](https://junglewise.ai/threats/cve-2026-42557-jupyter-jupyterlab-arbitrary-command-execution-via-html-sanitizer) (critical, CVSS 9.6, published 13 May 2026)
- [CVE-2026-102831: JupyterLab HTML output sanitization bypass via clipboard paste](https://junglewise.ai/threats/cve-2026-102831-jupyterlab-is-an-extensible-environment-for-interactive-and) (high, CVSS 8.1, published 29 Sep 2026)
- [CVE-2026-102832: JupyterLab command link trust prompt marks wrong document](https://junglewise.ai/threats/cve-2026-102832-jupyterlab-command-link-trust-prompt-in-jupyterlab-can-trust-a) (medium, CVSS 4.2, published 13 Oct 2026)
- [CVE-2026-40171: PYSEC-2026-2682 - Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSS](https://junglewise.ai/threats/cve-2026-40171-jupyter-notebook-authentication-token-theft-via-commandlinker-xss) (medium, CVSS 4, published 6 May 2026)
- [CVE-2015-6938: Improper Neutralization of Input During Web Page Generation in Jupyter Notebook](https://junglewise.ai/threats/cve-2015-6938-improper-neutralization-of-input-during-web-page-generation-in) (low, CVSS 3.1, published 21 Sep 2015)
- [CVE-2021-32797: PYSEC-2026-688 - JupyterLab: XSS due to lack of sanitization of the action attribute of an html <form>](https://junglewise.ai/threats/cve-2021-32797-jupyterlab-xss-due-to-lack-of-sanitization-of-the-action) (low, CVSS 3.1, published 2 Jul 2026)
- [CVE-2015-7337: Improper Input Validation in Jupyter Notebook](https://junglewise.ai/threats/cve-2015-7337-improper-input-validation-in-jupyter-notebook) (low, CVSS 3.1, published 29 Sep 2015)
- [CVE-2021-32798: Special Element Injection in notebook](https://junglewise.ai/threats/cve-2021-32798-special-element-injection-in-notebook) (low, CVSS 3.1, published 9 Aug 2021)
- [CVE-2018-21030: Cross-site scripting in Jupyter Notebook](https://junglewise.ai/threats/cve-2018-21030-cross-site-scripting-in-jupyter-notebook) (low, CVSS 3.1, published 31 Oct 2019)
- [CVE-2020-26215: Open redirect in Jupyter Notebook](https://junglewise.ai/threats/cve-2020-26215-open-redirect-in-jupyter-notebook) (low, CVSS 3.1, published 18 Nov 2020)

## Vulnerabilities per week

1 vulnerability in the last four weeks, level on the four before (1).

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 1 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 1 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other PyPI technologies

- [tensorflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-tensorflow): 435 vulnerabilities
- [tensorflow-cpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-cpu): 430 vulnerabilities
- [tensorflow-gpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-gpu): 427 vulnerabilities
- [open-webui (PyPI)](https://junglewise.ai/threats/technologies/open-webui): 177 vulnerabilities
- [Django (PyPI)](https://junglewise.ai/threats/technologies/django): 173 vulnerabilities
- [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow): 159 vulnerabilities
- [pillow (PyPI)](https://junglewise.ai/threats/technologies/pillow): 125 vulnerabilities
- [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai): 120 vulnerabilities
- [vllm (PyPI)](https://junglewise.ai/threats/technologies/pypi-vllm): 117 vulnerabilities
- [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone): 101 vulnerabilities
- [mlflow (PyPI)](https://junglewise.ai/threats/technologies/mlflow): 88 vulnerabilities
- [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan): 86 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "notebook (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/pypi-notebook, 13 November 2026.