Grades are a hygiene check, not a security guarantee.

MCP, MCP server

faucet

faucet, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

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

Rescanned at commit 6c374ae6c77b.

NETWORK_HOST_FROM_INPUT SECRETS_PATH_CREDENTIAL

Why this grade

  • NETWORK_HOST_FROM_INPUT High

    A file takes a URL or endpoint as input and has no fixed host list.

    ui/src/pages/ApiExplorer.tsx, line 348 const call = opts.length ? `fetch(${JSON.stringify(r.href)}, {\n${opts.join('\n')}\n})` : `fetch(${JSON.stringify(r.href)})`;

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    scripts/npm-publish.sh, line 107 # literal values. An .npmrc line such as ${NPM_TOKEN} referencing an unset

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    benchmarks/comparisons/coldstart.py, line 41

    shutil.rmtree(data, ignore_errors=True)

    benchmarks/comparisons/coldstart.py, line 45

    subprocess.run([fb, "--data-dir", data, "db", "add", "--name", "chinook", "--driver", "sqlite", "--path", db],

    benchmarks/comparisons/coldstart.py, line 47

    subprocess.run([fb, "--data-dir", data, "role", "create", "--name", "ro", "--verbs", "GET"],

    Show more

    benchmarks/comparisons/coldstart.py, line 49

    out = subprocess.run([fb, "--data-dir", data, "key", "create", "--role", "ro"], capture_output=True, text=True,

    benchmarks/comparisons/coldstart.py, line 66

    out = subprocess.run([fb, "--data-dir", data, "key", "create", "--role", "ro"], capture_output=True, text=True,

    benchmarks/comparisons/coldstart.py, line 149

    shutil.rmtree(d, ignore_errors=True)

    benchmarks/comparisons/mcpclient.py, line 81

    self.proc = subprocess.Popen(

    benchmarks/comparisons/run_all.py, line 76

    os.remove(p + suffix)

    benchmarks/comparisons/run_all.py, line 144

    self.p = subprocess.Popen(argv, stdout=self.log, stderr=subprocess.STDOUT, env=e, cwd=cwd or WORK,

    benchmarks/comparisons/run_all.py, line 279

    return subprocess.run(argv, capture_output=True, text=True, timeout=30).stdout.strip() or \

    benchmarks/comparisons/run_all.py, line 280

    subprocess.run(argv, capture_output=True, text=True, timeout=30).stderr.strip()

    benchmarks/comparisons/run_all.py, line 297

    shutil.rmtree(data_dir, ignore_errors=True)

    benchmarks/comparisons/run_all.py, line 760

    shutil.rmtree(d, ignore_errors=True)

    benchmarks/comparisons/run_all.py, line 807

    shutil.rmtree(d, ignore_errors=True)

  • Install and update

    Pass

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

  • Network

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    ui/src/pages/ApiExplorer.tsx, line 348

    const call = opts.length ? `fetch(${JSON.stringify(r.href)}, {\n${opts.join('\n')}\n})` : `fetch(${JSON.stringify(r.href)})`;

    ui/src/pages/ApiExplorer.tsx, line 690

    setUrlError('The explorer only sends requests to this Faucet server. Copy the curl command to call another host.');

    ui/src/pages/ApiExplorer.tsx, line 731

    res = await fetch(sendPath, { method, headers, body: sendsBody ? body : undefined, signal: controller.signal });

    Show more

    ui/src/pages/MCP.tsx, line 171

    `curl -sS -X POST ${url} \\\n` +

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    cmd/faucet/cli/serve.go, line 264

    envPassword := os.Getenv("FAUCET_ADMIN_PASSWORD")

    scripts/npm-publish.sh, line 107

    # literal values. An .npmrc line such as ${NPM_TOKEN} referencing an unset

    ui/src/pages/Dashboard.tsx, line 172

    code: `const res = await fetch("${origin}/api/v1/${first.name}/_table", {\n headers: { "X-API-Key": process.env.FAUCET_API_KEY },\n});\nconsole.log(await res.json());`,

    Show more

    scripts/npm-publish.sh, line 15

    # Authentication (decided here, never by ~/.npmrc):

    scripts/npm-publish.sh, line 75

    # Isolated npm userconfig: the runner's / developer's ~/.npmrc never interferes

    ui/src/pages/ApiKeys.tsx, line 464

    Faucet keeps only a hash. Store the key in your secrets manager or .env file now.

    .gitignore, line 40

    .env

  • Agent instructions

    Pass

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

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 6c374ae6c77b. can delete files. accepts a host from input, with no fixed list in this file. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 6c374ae6c77bc6b21a3493933497b49d86909110

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