# Marimo vulnerabilities

Source: https://junglewise.ai/threats/technologies/marimo  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/marimo.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Marimo: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-75149, was published on 19 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 4 (1 critical, 1 exploited in the wild)

## About Marimo

Python library for creating reactive notebooks with static output and live code updates.

## Latest Marimo vulnerabilities

- [CVE-2026-75149: marimo code injection in notebook configuration handler](https://junglewise.ai/threats/cve-2026-75149-marimo-code-injection-in-notebook-configuration-handler) (high, CVSS 8.8, published 19 Aug 2026)
- [CVE-2026-67618: marimo configuration injection via PEP-723 metadata](https://junglewise.ai/threats/cve-2026-67618-marimo-configuration-injection-via-pep-723-metadata) (medium, CVSS 6.5, published 4 Aug 2026)
- [CVE-2026-54386: marimo XSS via file query parameter in notebook page](https://junglewise.ai/threats/cve-2026-54386-marimo-xss-via-file-query-parameter-in-notebook-page) (medium, CVSS 6.1, published 17 Jun 2026)
- [CVE-2026-39987: Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass](https://junglewise.ai/threats/cve-2026-39987-marimo-pre-auth-remote-code-execution-via-terminal-websocket) (critical, exploited in the wild, CVSS 9.8, published 8 Apr 2026)

## Most severe Marimo vulnerabilities

- [CVE-2026-39987: Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass](https://junglewise.ai/threats/cve-2026-39987-marimo-pre-auth-remote-code-execution-via-terminal-websocket) (critical, exploited in the wild, CVSS 9.8, published 8 Apr 2026)
- [CVE-2026-75149: marimo code injection in notebook configuration handler](https://junglewise.ai/threats/cve-2026-75149-marimo-code-injection-in-notebook-configuration-handler) (high, CVSS 8.8, published 19 Aug 2026)
- [CVE-2026-67618: marimo configuration injection via PEP-723 metadata](https://junglewise.ai/threats/cve-2026-67618-marimo-configuration-injection-via-pep-723-metadata) (medium, CVSS 6.5, published 4 Aug 2026)
- [CVE-2026-54386: marimo XSS via file query parameter in notebook page](https://junglewise.ai/threats/cve-2026-54386-marimo-xss-via-file-query-parameter-in-notebook-page) (medium, CVSS 6.1, published 17 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 1 | 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 | 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, "Marimo vulnerabilities", https://junglewise.ai/threats/technologies/marimo, 9 November 2026.