Vulnerability in snyk-agent-scan: Executing Untrusted Code Without Consent
The article discusses a vulnerability in the snyk-agent-scan tool, which executes untrusted MCP server commands from the mcp.json configuration file without user consent or visibility.
Why it matters
This vulnerability in a tool designed to improve the security of AI-related workflows highlights the need for greater transparency and user control in AI tooling.
Key Points
- 1snyk-agent-scan executes MCP server commands from the mcp.json file without showing the user or asking for consent
- 2The tool also suppresses the output of the executed commands by default, hiding any evidence of execution
- 3This behavior contradicts the tool's purpose of helping developers evaluate the safety of the mcp.json configuration
Details
The snyk-agent-scan tool is designed to help developers check the safety of an mcp.json configuration before allowing an AI coding tool to load it. However, the tool has a vulnerability where it executes the MCP server commands from the mcp.json file without showing the user what will be executed, asking for consent, or restricting the execution in any way. Additionally, the tool suppresses the output of the executed commands by default, hiding any evidence of execution. The author argues that this
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