zabbix_get_users

THE RISK

Low Risk

Why zabbix_get_users needs a policy

This tool retrieves user information from a Zabbix monitoring system. It performs a query operation that returns data without modifying, deleting, or executing any actions. The presence of 'filtering and output options' reinforces that this is a data retrieval operation. There is no indication of data creation, modification, deletion, or execution of external operations.

From the tool's definition Tool name is 'zabbix_get_users' and description states 'Get users from Zabbix with filtering and output options'. The verb 'Get' combined with 'filtering and output options' indicates a read-only query operation with no side effects.

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

POLICY

How to control zabbix_get_users

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "zabbix_get_users": {}
  }
}

zabbix_get_users is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about zabbix_get_users

What does the zabbix_get_users tool do? +

Get users from Zabbix with filtering and output options. It is categorised as a Read tool in the Zabbix MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on zabbix_get_users? +

Register the Zabbix MCP Server MCP server in PolicyLayer and add a rule for zabbix_get_users: 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 Zabbix MCP Server. Nothing to install.

What risk level is zabbix_get_users? +

zabbix_get_users is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit zabbix_get_users? +

Yes. Add a rate_limit block to the zabbix_get_users 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 zabbix_get_users completely? +

Set action: deny in the PolicyLayer policy for zabbix_get_users. 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 zabbix_get_users? +

zabbix_get_users is provided by the Zabbix MCP Server MCP server (leroylim/zabbix-mcp-server-nodejs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Zabbix MCP Server tool call.

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

CHECK YOUR STACK →