Technology · Project Jupyter
Project Jupyter Jupyterlab vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 11 vulnerabilities in Project Jupyter Jupyterlab: 0 in the last 7 days and 9 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-73417, was published on 13 August 2026.
- Last 7 days
- 0
- Last 90 days
- 9
- Critical, all time
- 1
- Exploited in the wild
- 0
About Project Jupyter Jupyterlab
A web-based interactive development environment for Jupyter notebooks, code, and data.
Latest Project Jupyter Jupyterlab vulnerabilities
- CVE-2026-73417: JupyterLab arbitrary code execution via malicious overrides.jsonmediumCVSS 4EPSS 0.8%
- CVE-2026-73416: JupyterLab extension blocklist bypass via package name variantmediumCVSS 4EPSS 0.7%
- CVE-2026-73627: JupyterLab plugin manager lock-rule enforcement bypassinfoCVSS 6EPSS 0.4%
- CVE-2026-73626: JupyterLab allowlist/blocklist bypass in PyPIExtensionManager.install()highCVSS 7.5EPSS 0.4%
- CVE-2026-67338: JupyterLab stored cross-site scripting in Extension ManagermediumCVSS 6.1EPSS 0.3%
- JupyterLab XSS via crafted settings file in overrides.jsonhighCVSS 8.6
- JupyterLab blocklist bypass in PyPI extension managermediumCVSS 6.1
- Jupyter JupyterLab auth bypass in PluginManager lock-rule enforcementmediumCVSS 6
- 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-2026-42266: Project Jupyter JupyterLab privilege escalation in PyPI Extension ManagerhighCVSS 8.8EPSS 0.9%
Most severe Project Jupyter Jupyterlab 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-2026-42266: Project Jupyter JupyterLab privilege escalation in PyPI Extension ManagerhighCVSS 8.8EPSS 0.9%
- JupyterLab XSS via crafted settings file in overrides.jsonhighCVSS 8.6
- CVE-2026-73626: JupyterLab allowlist/blocklist bypass in PyPIExtensionManager.install()highCVSS 7.5EPSS 0.4%
- CVE-2026-67338: JupyterLab stored cross-site scripting in Extension ManagermediumCVSS 6.1EPSS 0.3%
- JupyterLab blocklist bypass in PyPI extension managermediumCVSS 6.1
- Jupyter JupyterLab auth bypass in PluginManager lock-rule enforcementmediumCVSS 6
- CVE-2026-73417: JupyterLab arbitrary code execution via malicious overrides.jsonmediumCVSS 4EPSS 0.8%
- CVE-2026-73416: JupyterLab extension blocklist bypass via package name variantmediumCVSS 4EPSS 0.7%
- CVE-2026-40171: PYSEC-2026-2682 - Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSSmediumCVSS 4EPSS 0.7%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 1 | 0 | |
| 20 Jul 2026 | 3 | 0 | |
| 27 Jul 2026 | 1 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 4 | 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 | |
| 28 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/jupyterlab.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 Jupyterlab vulnerabilities", https://junglewise.ai/threats/technologies/jupyterlab, 28 September 2026.