Description
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 breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- marimo-team / marimo0 – 0.23.15
References
- PATCHhttps://github.com/marimo-team/marimo/releases/tag/0.23.15
- PATCHhttps://github.com/marimo-team/marimo/pull/10281
- PATCHhttps://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/marimo-code-injection-via-mcp-server-configuration
Updated 10m ago · 8 sources