Grades are a hygiene check, not a security guarantee.

MCP, MCP server

DLBrowser

DLBrowser, 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 60ebfa3aab9c, unchanged since the check below.

PERMISSION_SHELL_UNDECLARED NETWORK_HOST_FROM_INPUT

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    build_dlbrowser.py, line 17 shutil.rmtree(SRC)

  • NETWORK_HOST_FROM_INPUT Medium

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

    build_dlbrowser.py, line 788 result = await fetch(current_url, mode="article", stealth=True, timeout=15)

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. requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES

    build_dlbrowser.py, line 17

    shutil.rmtree(SRC)

    hermes-agent-browser/browser_tool.py, line 912

    proc = subprocess.Popen(

    hermes-agent-browser/browser_tool.py, line 1372

    shutil.rmtree(socket_dir, ignore_errors=True)

    Show more

    hermes-agent-browser/browser_tool.py, line 1378

    shutil.rmtree(socket_dir, ignore_errors=True)

    hermes-agent-browser/browser_tool.py, line 1385

    shutil.rmtree(socket_dir, ignore_errors=True)

    hermes-agent-browser/browser_tool.py, line 1401

    shutil.rmtree(socket_dir, ignore_errors=True)

    hermes-agent-browser/browser_tool.py, line 2073

    proc = subprocess.Popen(

    hermes-agent-browser/browser_tool.py, line 3504

    shutil.rmtree(socket_dir, ignore_errors=True)

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    requirements.txt, line 2

    beautifulsoup4>=4.12

  • Network

    Serious

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

    NETWORK_HOST_FROM_INPUT

    build_dlbrowser.py, line 788

    result = await fetch(current_url, mode="article", stealth=True, timeout=15)

    build_dlbrowser.py, line 1203

    result = await fetch(json_url, mode="text", stealth=True, timeout=15)

    build_dlbrowser.py, line 1227

    result = await fetch(url, mode="article", stealth=True, timeout=15)

    Show more

    build_dlbrowser.py, line 1261

    result = await fetch(url, mode="article", stealth=True, timeout=15)

    build_dlbrowser.py, line 1280

    result = await fetch(api_url, mode="text", stealth=True, timeout=15)

    build_dlbrowser.py, line 1298

    result = await fetch(url, mode="article", stealth=True, timeout=15)

    build_dlbrowser.py, line 1321

    result = await fetch(url, mode="article", stealth=True, timeout=15)

    build_dlbrowser.py, line 1341

    result = await fetch(api_url, mode="text", stealth=True, timeout=10)

    src/cli.py, line 44

    # fetch (one-shot)

    src/cli.py, line 90

    result = await fetch(args.url, mode=args.mode, stealth=args.stealth, timeout=args.timeout)

    src/hermes_browser/discovery.py, line 90

    result = await fetch(current_url, mode="article", stealth=True, timeout=15)

    src/hermes_browser/production.py, line 357

    result = await fetch(task.url, mode="article", stealth=True, timeout=task.timeout)

    src/hermes_browser/production.py, line 371

    result = await fetch(task.url, mode="article", stealth=True, timeout=task.timeout)

    src/hermes_browser/production.py, line 386

    result = await fetch(task.url, mode="article", stealth=True, timeout=task.timeout)

    src/hermes_browser/webhooks.py, line 263

    resp = urllib.request.urlopen(req, timeout=self.timeout)

    src/hermes_browser/outcomes/competitor_monitor.py, line 99

    result = await fetch(url, mode="article", stealth=True)

    CHANGES.md, line 99

    result = await fetch('https://example.com', proxy=proxy.get_proxy())

    docker-compose.yml, line 33

    test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8929/health')"]

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    connect/bin/dlbrowser.js, line 108

    const out = { hosts: [], key: process.env.DLBROWSER_API_KEY || '', url: DEFAULT_URL, stdio: false, print: false };

    hermes-agent-browser/browser_camofox.py, line 20

    Then set ``CAMOFOX_URL=http://localhost:9377`` in ``~/.hermes/.env``.

    hermes-agent-browser/browser_camofox.py, line 139

    os.getenv("CAMOFOX_SESSION_KEY", "").strip()

    Show more

    skills/stealth-scraping/references/tavily-source-discovery.md, line 10

    TAVILY_API_KEY = os.getenv("TAVILY_API_KEY", "")

    src/hermes_browser/captcha.py, line 26

    self.api_key = api_key or os.environ.get("CAPTCHA_API_KEY")

    src/hermes_browser/dotenv.py, line 1

    """Minimal .env loader (no dependency).

    src/hermes_browser/dotenv.py, line 3

    Loads ``.env.local`` then ``.env`` from the current directory (and the project

    src/hermes_browser/dotenv.py, line 31

    """Load .env.local / .env from CWD and the package's project root."""

    src/hermes_browser/dotenv.py, line 35

    for name in (".env.local", ".env"):

    src/hermes_browser/engine.py, line 127

    if (not forced or forced == "firecrawl") and os.environ.get("FIRECRAWL_API_KEY"):

    src/hermes_browser/hermes_ds_fallback.py, line 42

    api_key = api_key or os.environ.get("FIRECRAWL_API_KEY", "")

    src/hermes_browser/hermes_ds_fallback.py, line 126

    api_key = api_key or os.environ.get("FIRECRAWL_API_KEY", "")

    src/hermes_browser/llm_manager.py, line 179

    self.add_key(provider, key=os.environ.get("FREE_LLM_KEY", "free"),

    .gitignore, line 1

    # Secrets - NEVER commit

    .gitignore, line 2

    .env

    .gitignore, line 3

    .env.local

  • 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 60ebfa3aab9c. can delete files. requests shell access. No manifest field names shell or command execution. dependencies are not pinned. 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: 60ebfa3aab9c3490e1ba4fd64fc0f2f77dd24394

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