ToolTrust
D70/100
DMontgomery40

mcp-3d-printer-server

mcp1.2.3

@DMontgomery40

Connects MCP to major 3D printer APIs (Orca, Bambu, OctoPrint, Klipper, Duet, Repetier, Prusa, Creality). Control prints, monitor status, and perform advanced STL operations like scaling, rotation, sectional editing, and base extension. Includes slicing and visualization.

By DMontgomery40 | 83 findings | Scanned 5/30/2026 | tooltrust-scanner/v0.3.13 | 186

50 High20 Medium13 Low

Risk Summary

Block in Production

Excessive Permissions + Supply Chain CVEs risk is significant. Avoid using this in production agents.

Potential impact: The agent may gain overly broad access to files, network, databases, or execution capabilities.

Recommended action: This tool should stay disabled in production agents until the flagged risks are fixed and the scan is clean.

{
  "mcpServers": {
    "mcp-3d-printer-server": {
      "disabled": true
    }
  }
}

Security Findings (83)

  • HighAS-002

    ⚠️Excessive Permissions ×13

    tool declares network permission

    get_printer_statuslist_printer_filesupload_gcodestart_printcancel_printset_printer_temperatureprocess_and_print_stlprint_3mfcheck_fulu_orca_setupfulu_bambu_network_rpc

    tool declares exec permission

    check_fulu_orca_setupfulu_bambu_network_rpcblender_mcp_edit_model

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • HighAS-004

    📦Supply Chain CVEs (OSV) ×23

    GO-2026-5024 in golang.org/x/[email protected]: Invoking integer overflow in NewNTUnicodeString in golang.org/x/sys/windows (upgrade to 0.44.0)

    get_printer_statuslist_printer_filesupload_gcodestart_printcancel_printset_printer_temperatureextend_stl_baseslice_stlconfirm_temperaturesprocess_and_print_stlget_stl_infoscale_stlrotate_stltranslate_stlmodify_stl_sectiongenerate_stl_visualizationprint_3mfcheck_fulu_orca_setupfulu_bambu_network_rpcmerge_verticescenter_modellay_flatblender_mcp_edit_model

    Fix: Upgrade or replace the vulnerable dependency. Pin all dependency versions and enable automated CVE scanning (Dependabot or OSV Scanner).

  • HighAS-010

    🔑Insecure Secret Handling ×14

    input parameter "api_key" appears to accept a secret or credential

    get_printer_statuslist_printer_filesupload_gcodestart_printcancel_printset_printer_temperatureprocess_and_print_stl

    input parameter "bambu_token" appears to accept a secret or credential

    get_printer_statuslist_printer_filesupload_gcodestart_printcancel_printset_printer_temperatureprint_3mf

    Fix: Avoid accepting raw credentials as input parameters. Use secret managers (e.g. 1Password CLI, AWS Secrets Manager) and ensure credentials are never logged or stored in agent traces.

  • MediumAS-002

    ⚠️Excessive Permissions ×19

    tool declares fs permission

    list_printer_filesupload_gcodestart_printextend_stl_baseslice_stlconfirm_temperaturesprocess_and_print_stlget_stl_infoscale_stlrotate_stltranslate_stlmodify_stl_sectiongenerate_stl_visualizationprint_3mfcheck_fulu_orca_setupmerge_verticescenter_modellay_flatblender_mcp_edit_model

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • MediumAS-003

    🔀Scope Mismatch

    set_printer_temperature:tool name "set_printer_temperature" implies local write operation but only remote/network-class permissions were detected

    Fix: Ensure tool names, descriptions, and permission declarations are internally consistent. Use explicit naming conventions that fully reflect actual capabilities.

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout ×9

    tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    get_printer_statuslist_printer_filesupload_gcodestart_printcancel_printset_printer_temperatureprocess_and_print_stlprint_3mfblender_mcp_edit_model

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • LowAS-002

    ⚠️Excessive Permissions ×4

    input schema exposes 15 properties (threshold: 10)

    process_and_print_stl

    input schema exposes 12 properties (threshold: 10)

    modify_stl_section

    input schema exposes 22 properties (threshold: 10)

    print_3mf

    tool declares http permission

    fulu_bambu_network_rpc

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

Scan this tool yourself

Reproduce this audit locally, integrate into CI, or let your agent audit its own tools.

Install once, then scan any MCP server:

$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y mcp-3d-printer-server"

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