marimo Code Injection via MCP Server Configuration
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. The vulnerability is triggered when a notebook is opened in edit mode without requiring authentication or cell execution.
Disclosed 19 August 2026 · Record updated 13 September 2026
Impact
Arbitrary command execution on local system when opening a crafted notebook in edit mode
Our coverage
No articles linked to this incident yet.
Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-75149
