---
cve: "CVE-2026-75149"
severity: "HIGH"
cvss: 8.7
epss: "64%"
vendor: "marimo-team"
kev: false
exploited: false
published: "2026-08-19 18:17:26"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-08-31T20:01:55+02:00"
---

# CVE-2026-75149

> 8.7 HIGH · 🧪 PoC

## Beschreibung

marimo before 0.23.15 contains a code injection vulnerability in the notebook configuration handler that allows attackers to execute arbitrary commands by supplying a crafted MCP server entry with an attacker-controlled command value embedded in a notebook. When the notebook is opened in edit mode, marimo launches the specified command as a local subprocess before any notebook cell is executed, requiring no authentication or cell execution to trigger the vulnerability.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- d8789daa177c759747fa2c36b985a7c36c37f048 (Commit)
- 1a21bd71e258438d2511136b5edacc94c08855f4 (Commit)

## Referenzen

- <https://github.com/marimo-team/marimo/releases/tag/0.23.15>
- <https://github.com/marimo-team/marimo/pull/10281>
- <https://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4>
- <https://www.vulncheck.com/advisories/marimo-code-injection-via-mcp-server-configuration>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-75149) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_