# Lfnovo Open Notebook vulnerabilities

Source: https://junglewise.ai/threats/technologies/open-notebook  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/open-notebook.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in Lfnovo Open 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-2026-90769, was published on 13 September 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 5 (1 critical, 0 exploited in the wild)

## About Lfnovo Open Notebook

Web-based note-taking and document management application.

## Latest Lfnovo Open Notebook vulnerabilities

- [CVE-2026-90769: Open Notebook server-side request forgery in /api/sources](https://junglewise.ai/threats/cve-2026-90769-open-notebook-server-side-request-forgery-in-api-sources) (high, CVSS 7.7, published 13 Sep 2026)
- [CVE-2026-33589: Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to…](https://junglewise.ai/threats/cve-2026-33589-lack-of-user-input-validation-in-the-file-upload-functionality-of) (medium, CVSS 6.5, published 7 May 2026)
- [CVE-2026-33588: Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to…](https://junglewise.ai/threats/cve-2026-33588-lack-of-user-input-validation-in-the-file-upload-functionality-of) (high, CVSS 8.1, published 7 May 2026)
- [CVE-2026-33587: Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…](https://junglewise.ai/threats/cve-2026-33587-lack-of-user-input-sanitisation-in-open-notebook-v1-8-3-allows) (critical, CVSS 10, published 7 May 2026)
- [CVE-2026-28201: An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1…](https://junglewise.ai/threats/cve-2026-28201-an-improper-input-validation-together-with-an-overly-permissive) (high, CVSS 7.8, published 7 May 2026)

## Most severe Lfnovo Open Notebook vulnerabilities

- [CVE-2026-33587: Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…](https://junglewise.ai/threats/cve-2026-33587-lack-of-user-input-sanitisation-in-open-notebook-v1-8-3-allows) (critical, CVSS 10, published 7 May 2026)
- [CVE-2026-33588: Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to…](https://junglewise.ai/threats/cve-2026-33588-lack-of-user-input-validation-in-the-file-upload-functionality-of) (high, CVSS 8.1, published 7 May 2026)
- [CVE-2026-28201: An improper input validation, together with an overly permissive default CORS configuration in Open Notebook v1.8.1…](https://junglewise.ai/threats/cve-2026-28201-an-improper-input-validation-together-with-an-overly-permissive) (high, CVSS 7.8, published 7 May 2026)
- [CVE-2026-90769: Open Notebook server-side request forgery in /api/sources](https://junglewise.ai/threats/cve-2026-90769-open-notebook-server-side-request-forgery-in-api-sources) (high, CVSS 7.7, published 13 Sep 2026)
- [CVE-2026-33589: Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to…](https://junglewise.ai/threats/cve-2026-33589-lack-of-user-input-validation-in-the-file-upload-functionality-of) (medium, CVSS 6.5, published 7 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| 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 | 1 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 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 |

## 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, "Lfnovo Open Notebook vulnerabilities", https://junglewise.ai/threats/technologies/open-notebook, 12 November 2026.