MCP Security
Separation of Privilege in MCP Tool Authorization
Most MCP deployments lack access scoping, leaving agents vulnerable to confused-deputy attacks.
Isaac Dieng
Staff Writer · · 11 min read
Most MCP deployments lack access scoping, leaving agents vulnerable to confused-deputy attacks.
MCP deployments lack built-in security controls, leaving authorization gaps at every hop.
Malicious MCP servers can change their behavior after approval without triggering re-evaluation.
MCP's explosive growth masks critical security gaps that enterprises must address before deployment.
When MCP gateways fail, denying access by default protects assets better than staying open.
Prompt injection in MCP systems triggers real code execution, not just bad outputs.
When agents run faster than humans can audit, classical segregation of duties breaks.
Agents holding enterprise credentials become attack vectors when they browse untrusted web pages.