Medium Risk

users_bulk_extend_expiration

Bulk extend expiration date for selected users

How to control users_bulk_extend_expiration ↓

AI agents use users_bulk_extend_expiration to create or update resources in Remnawave — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Remnawave environment.

Medium Risk

This tool modifies expiration dates for multiple users simultaneously. It is a write operation (updating data) rather than destructive since extending dates doesn't delete anything. However, the bulk nature and potential for misuse (extending access for unauthorized users) makes it high severity.

From the tool's definition Bulk extend expiration date for selected users

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

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "users_bulk_extend_expiration": {
      "limits": [
        {
          "counter": "users_bulk_extend_expiration_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

users_bulk_extend_expiration stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

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

What does the users_bulk_extend_expiration tool do? +

Bulk extend expiration date for selected users. It is categorised as a Write tool in the Remnawave MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on users_bulk_extend_expiration? +

Register the Remnawave MCP server in PolicyLayer and add a rule for users_bulk_extend_expiration: 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 Remnawave. Nothing to install.

What risk level is users_bulk_extend_expiration? +

users_bulk_extend_expiration is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit users_bulk_extend_expiration? +

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

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

users_bulk_extend_expiration is provided by the Remnawave MCP server (trackline/mcp-remnawave). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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153 Remnawave tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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