Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Gopher & Gemini MCP Server

Gopher & Gemini MCP Server, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High. 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.

PERMISSION_SHELL_UNDECLARED INSTALL_REMOTE_SCRIPT NETWORK_HOST_FROM_INPUT

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

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

    scripts/prepare-release.py, line 226 result = subprocess.run(

  • 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).

    scripts/dev-setup.sh, line 55 curl -LsSf https://astral.sh/uv/install.sh | sh

  • NETWORK_HOST_FROM_INPUT Medium

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

    src/gopher_mcp/gemini_client.py, line 302 # answers with RateLimited instead, which fetch() turns into a structured

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

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

    PERMISSION_SHELL_UNDECLARED

    scripts/prepare-release.py, line 226

    result = subprocess.run(

    scripts/prepare-release.py, line 244

    result = subprocess.run(cmd, check=False, cwd=self.project_root)

    scripts/prepare-release.py, line 251

    push_result = subprocess.run(

    Show more

    scripts/prepare-release.py, line 307

    result = subprocess.run(

    scripts/prepare-release.py, line 450

    result = subprocess.run(

    scripts/prepare-release.py, line 475

    result = subprocess.run(

    scripts/prepare-release.py, line 514

    integration_result = subprocess.run(

    scripts/prepare-release.py, line 552

    lint_result = 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

    docs/troubleshooting.md, line 26

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

    scripts/dev-setup.sh, line 55

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

  • Network

    Serious

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

    NETWORK_HOST_FROM_INPUT

    src/gopher_mcp/gemini_client.py, line 302

    # answers with RateLimited instead, which fetch() turns into a structured

    src/gopher_mcp/gemini_client.py, line 383

    async def fetch(

    src/gopher_mcp/gemini_client.py, line 1274

    # propagates to fetch() and becomes a CERTIFICATE_CHANGED error.

    Show more

    src/gopher_mcp/gemini_client.py, line 1386

    # SSRFError, TimeoutError, ...) so fetch() can map it to a distinct

    src/gopher_mcp/gopher_client.py, line 375

    async def fetch(

    src/gopher_mcp/gopher_client.py, line 826

    # Normally already handled in fetch(); kept so any other caller of

    src/gopher_mcp/models.py, line 482

    description="Gopher URL to fetch (e.g., gopher://gopher.floodgap.com/1/)",

    src/gopher_mcp/models.py, line 715

    description="Gemini URL to fetch (e.g., gemini://geminiprotocol.net/)",

    src/gopher_mcp/server.py, line 922

    response = await client.fetch(request.url, refresh=refresh, **window)

    src/gopher_mcp/server.py, line 949

    `i` (info) entry: banner text with nothing to fetch (passing that empty

    Dockerfile, line 79

    CMD ["python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health', timeout=2)"]

    docs/ai-assistant-guide.md, line 535

    def fetch(url):

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    scripts/validate-config.py, line 11

    python scripts/validate-config.py .env # validate an env file

    scripts/validate-config.py, line 458

    elif Path(".env").is_file():

    scripts/validate-config.py, line 459

    env_file = Path(".env")

    Show more

    src/gopher_mcp/__main__.py, line 184

    # A typo in .env is a configuration mistake, not a crash: name the

    src/gopher_mcp/config.py, line 236

    env_file=".env",

    src/gopher_mcp/config.py, line 437

    env_file=".env",

    src/gopher_mcp/config.py, line 469

    env_file=".env",

    src/gopher_mcp/config.py, line 500

    internals for what is almost always a typo in ``.env``.

  • 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 ccaaae14b35c. requests shell access. No manifest field names shell or command execution. install fetches a script from the network. The docs document an installer that pipes a download into a shell. accepts a host from input, with no fixed list in this file. 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: ccaaae14b35c545ac9fdfb4a433aea1d01af248b

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