connect_mongodb

THE RISK

High Risk

Why connect_mongodb needs a policy

Connecting to a database is not a simple read or write; it initiates an external session/connection and may expose credentials or open persistent access channels. It doesn't destroy data, but it executes an external operation with potentially significant security implications (e.g., connecting to an unintended or malicious host).

From the tool's definition 'Connect to MongoDB database using URL or config' — establishes an external database connection, triggering a network operation whose effects depend on the provided arguments (URL or config).

Documented attack patterns abuse exactly the kind of access connect_mongodb gives an agent:

POLICY

How to control connect_mongodb

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-MongoDB-MySQL-Server, and nothing reaches the server without passing your rules. This is the rule we recommend for connect_mongodb:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "connect_mongodb": {
      "limits": [
        {
          "counter": "connect_mongodb_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

connect_mongodb stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register MCP-MongoDB-MySQL-Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP-MongoDB-MySQL-Server tools

Destructive mongodb_delete Delete documents from a MongoDB collection Execute execute Execute an INSERT, UPDATE, or DELETE query Write add_column Add a new column to existing table Write create_table Create a new table in the database Write mongodb_create_collection Create a new collection in MongoDB Write mongodb_insert Insert documents into a MongoDB collection Write mongodb_update Update documents in a MongoDB collection Read describe_table Get table structure

All 14 MCP-MongoDB-MySQL-Server tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in MCP-MongoDB-MySQL-Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about connect_mongodb

What does the connect_mongodb tool do? +

Connect to MongoDB database using URL or config. It is categorised as a Execute tool in the MCP-MongoDB-MySQL-Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on connect_mongodb? +

Register the MCP-MongoDB-MySQL-Server MCP server in PolicyLayer and add a rule for connect_mongodb: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP-MongoDB-MySQL-Server. Nothing to install.

What risk level is connect_mongodb? +

connect_mongodb is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit connect_mongodb? +

Yes. Add a rate_limit block to the connect_mongodb rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block connect_mongodb completely? +

Set action: deny in the PolicyLayer policy for connect_mongodb. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides connect_mongodb? +

connect_mongodb is provided by the MCP-MongoDB-MySQL-Server MCP server (yaoxiaolinglong/mcp-mongodb-mysql-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-MongoDB-MySQL-Server tool call.

Start from MCP-MongoDB-MySQL-Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →