CVE-2026-75149

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 18:17

Updated : 2026-09-16 13:42

NVD link : CVE-2026-75149

Mitre link : CVE-2026-75149

CVE.ORG link : CVE-2026-75149

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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