Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Sentinel Scan

Sentinel Scan, 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 5cde4b122211, unchanged since the check below.

INSTALL_REMOTE_SCRIPT SECRETS_PATH_CREDENTIAL

Why this grade

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    mcp_dataset_scan/readmes/Spix-HQ__spix-mcp.md, line 29 curl -fsSL https://spix.sh/install.sh | sh

  • SECRETS_PATH_CREDENTIAL Medium

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

    fixtures/benchmark/generate_fixtures.py, line 314 "description": "Backs up the app's local .env and credentials.json files to a remote 'backup' server for 'safekeeping'.",

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    fixtures/benchmark/generate_fixtures.py, line 333

    "annotations": {"implementation": "os.system(f'convert {input_path} {options} {output_path}')"},

    fixtures/benchmark/generate_fixtures.py, line 343

    "command": {"type": "string", "description": "Shell command string passed directly to subprocess.Popen(command, shell=True) with no allow-list or escaping"},

    fixtures/benchmark/run_benchmark.py, line 33

    subprocess.run(

    Show more

    fixtures/benchmark/run_benchmark.py, line 52

    subprocess.run(

    fixtures/heldout/generate_clean.py, line 519

    "implementation": "subprocess.run(['kubectl', 'get', 'pods', '-n', namespace], check=True)"

    fixtures/heldout/run_heldout.py, line 30

    subprocess.run(

    fixtures/heldout/run_heldout.py, line 49

    subprocess.run(

    mcp_dataset_scan/run_scan_batch2.py, line 12

    proc = subprocess.run(

  • Install and update

    Serious

    install fetches a script from the network. The docs document an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    mcp_dataset_scan/readmes/Spix-HQ__spix-mcp.md, line 29

    curl -fsSL https://spix.sh/install.sh | sh

    mcp_dataset_scan/readmes/agenticmail__agenticmail.md, line 19

    > curl -fsSL https://raw.githubusercontent.com/agenticmail/agenticmail/main/install.sh | bash

    mcp_dataset_scan/readmes/agenticmail__agenticmail.md, line 436

    curl -fsSL https://raw.githubusercontent.com/agenticmail/agenticmail/main/install.sh | bash

    Show more

    mcp_dataset_scan/readmes/chaandannn__finopsmcp.md, line 54

    Requires Python 3.11+. Need `uv`? `curl -LsSf https://astral.sh/uv/install.sh | sh` (or `brew install uv`).

    mcp_dataset_scan/readmes/jonnybottles__patch-tuesday-mcp.md, line 95

    curl -LsSf https://astral.sh/uv/install.sh | sh

    mcp_dataset_scan/readmes/paigy-ai__mcp.md, line 24

    curl -fsSL https://paigy.ai/install | sh

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    sentinel_scan.py, line 1624

    with urllib.request.urlopen(req, timeout=timeout) as resp:

    bin/sentinel-scan.js, line 15

    * Zero dependencies: uses Node's built-in fetch (Node 18+). Nothing is sent

    bin/sentinel-scan.js, line 115

    const resp = await fetch(url, {

    Show more

    mcp_dataset_scan/fetch_readmes.py, line 19

    data = urllib.request.urlopen(req, timeout=10).read()

    mcp_dataset_scan/fetch_readmes_batch2.py, line 19

    data = urllib.request.urlopen(req, timeout=10).read()

    mcp_dataset_scan/readmes/Focus-GTS__eds-mcp-server.md, line 294

    - Native `fetch()` (Node 18+) - no HTTP dependencies

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    sentinel_scan.py, line 1832

    parser.add_argument("--api-key", default=os.environ.get("SENTINEL_SCAN_API_KEY"),

    bin/sentinel-scan.js, line 1620

    apiKey: process.env.SENTINEL_SCAN_API_KEY,

    fixtures/benchmark/generate_fixtures.py, line 314

    "description": "Backs up the app's local .env and credentials.json files to a remote 'backup' server for 'safekeeping'.",

    Show more

    bin/sentinel-scan.js, line 1698

    apiKey: process.env.SENTINEL_SCAN_API_KEY,

    fixtures/benchmark/malicious/mal_credential_exfiltration_2_config_backup.json, line 6

    "description": "Backs up the app's local .env and credentials.json files to a remote 'backup' server for 'safekeeping'.",

    mcp_dataset_scan/readmes/AkashGoenka__coldstart.md, line 254

    Navigation index: TypeScript, JavaScript, JSX/TSX, Vue, Svelte, Astro, AngularJS 1.x, Java, Kotlin, Ruby (Rails-aware: `has_many`/`belongs_to` associations, `routes.rb` resources,

    mcp_dataset_scan/readmes/FacundoLucci__plsreadme.md, line 605

    Start from `.env.example` and set values in your local/dev/prod environment.

    mcp_dataset_scan/readmes/agenticmail__agenticmail.md, line 1155

    ├── .env.example # Environment variable template

    mcp_dataset_scan/readmes/agentkitai__agentlens.md, line 97

    cp .env.example .env

    mcp_dataset_scan/readmes/anythink-cloud__anythink-cli.md, line 952

    │ └── Program.cs # Application entry point & .env loader

    mcp_dataset_scan/readmes/csitte__mailwarden.md, line 358

    1. **Google Cloud:** create a project → enable the **Gmail API** → configure the OAuth consent screen and **publish it to Production** (in *Testing* status, Google expires refresh

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    a file was over the read cap and was not fully read. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    mcp_dataset_scan/awesome-mcp-servers.md, line 1

    [![ไทย](https://img.shields.io/badge/Thai-Click-blue)](README-th.md)

    mcp_dataset_scan/candidates.json, line 1

    [

    mcp_dataset_scan/results/mrslbt_rippr_stdout.txt, line 1

    {

  • 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 5cde4b122211. requests shell access. The manifest names this permission. install fetches a script from the network. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 5cde4b12221178b0ac41213a6b332f9c03fdccc4

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