Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Boundary

Mcp Boundary, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit fb85359e7f80, unchanged since the check below.

OBFUSCATION_ENCODED_BLOB

Why this grade

  • OBFUSCATION_ENCODED_BLOB Medium

    Contains a long base64 shaped string in a file that should be readable.

    src/skills/mcp-boundary/references/profiles/integration-guidance-2026-08-15.md, line 1 ---

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    can delete files.

    PERMISSION_DELETE_FILES

    evaluations/prepare_comparison.py, line 33

    files = subprocess.check_output(['git', 'ls-tree', '-r', '--name-only', baseline, prefix], cwd=ROOT, text=True).splitlines()

    evaluations/prepare_comparison.py, line 37

    destination.write_bytes(subprocess.check_output(['git', 'show', f'{baseline}:{source}'], cwd=ROOT))

    guide/tools/run_skill_dogfood.py, line 62

    result = subprocess.run(

    Show more

    guide/tools/run_skill_dogfood.py, line 110

    tag_diff = subprocess.run(

    guide/tools/run_skill_dogfood.py, line 392

    result = subprocess.run(

    scripts/build_plugin.py, line 94

    shutil.rmtree(backup)

    scripts/build_plugin.py, line 104

    shutil.rmtree(backup)

    scripts/smoke_plugin_install.py, line 32

    run = subprocess.run(['codex', *arguments], cwd=temp, env=env, text=True, capture_output=True)

    scripts/smoke_plugin_install.py, line 35

    listing = json.loads(subprocess.check_output(['codex', 'plugin', 'list', '--json'], cwd=temp, env=env, text=True))

    scripts/smoke_plugin_install.py, line 56

    observer = subprocess.check_output(['codex', '--version'], text=True).strip()

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    lab/host-harness/start.ts, line 62

    const response = await fetch(healthUrl);

    lab/scripts/mcp-smoke.ts, line 46

    const response = await fetch(healthUrl);

    lab/scripts/mcp-smoke.ts, line 96

    const healthResponse = await fetch(`${origin}/healthz`);

    Show more

    lab/scripts/runtime-smoke.mjs, line 273

    const response = await fetch(url);

    lab/scripts/smoke-entrypoint-view.ts, line 28

    const served = await (await fetch(`${server.origin}/app`)).text();

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_UNCONFIRMED

    lab/.dockerignore, line 7

    playwright-report

    lab/.gitignore, line 8

    .vercel/

    lab/.gitignore, line 10

    !.env.example

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    src/skills/mcp-boundary/references/profiles/integration-guidance-2026-08-15.md, line 1

    ---

    mcp-boundary-demo.html, line 8

    <meta property="og:site_name" content="MCP Boundary"><meta property="og:locale" content="en_US"><meta property="og:locale:alternate" content="zh_CN"><meta property="og:title" conte

    mcp-boundary-demo.html, line 9

    <link rel="icon" href="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0IiByb2xlPSJpbWciIGFyaWE

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit fb85359e7f80. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: fb85359e7f8001a1d291e30d2ccfceb6ff33e9fb

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen