proxmox_guest_exec

A execute tool on the MCP Proxmox MCP server.

SERVERMCP Proxmox Server SOURCEbsahane/mcp-proxmox

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/bsahane-mcp-proxmox/proxmox-guest-exec.md

WHAT IT DOES

What proxmox_guest_exec does on MCP Proxmox Server

AI agents invoke proxmox_guest_exec to trigger actions in MCP Proxmox Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why proxmox_guest_exec is rated High

The name 'exec' in the context of a Proxmox guest management server almost certainly refers to running arbitrary commands inside a guest virtual machine or container (similar to QEMU guest agent exec or LXC exec). This is an Execute-category action with critical severity because it allows arbitrary code execution inside virtualized guests, potentially affecting entire VMs or containers.

From the tool's definition Tool name 'proxmox_guest_exec' strongly implies executing commands inside a guest VM/LXC container on Proxmox infrastructure

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs proxmox_guest_exec safely

PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Proxmox Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For proxmox_guest_exec, this is the rule to start with:

proxmox_guest_exec Rate-limited

proxmox_guest_exec 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.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MCP Proxmox Server, apply this rule, and every proxmox_guest_exec call is checked against it from then on.

FAQ

Questions about proxmox_guest_exec

What does the proxmox_guest_exec tool do? +

proxmox_guest_exec is a execute tool on the MCP Proxmox Server MCP server. It is categorised as a Execute tool in the MCP Proxmox 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 proxmox_guest_exec? +

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

What risk level is proxmox_guest_exec? +

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

Can I rate-limit proxmox_guest_exec? +

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

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

proxmox_guest_exec is provided by the MCP Proxmox Server MCP server (bsahane/mcp-proxmox). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on MCP Proxmox Server, and thousands of servers like it.

This server

All 124 MCP Proxmox Server tools → High-risk tools on this server →

Across the catalogue

All high-risk MCP tools → The MCP Attack Database →

Guides

Govern code and CI agents →Agent sandbox →Least privilege for MCP →