Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Google Sheets

This MCP server integrates with your Google Drive and Google Sheets, to enable creating and modifying spreadsheets.

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 b2f98244590f, 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).

    Dockerfile, line 21 RUN curl -LsSf https://astral.sh/uv/install.sh | sh

  • SECRETS_PATH_CREDENTIAL Medium

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

    src/mcp_google_sheets/server.py, line 35 CREDENTIALS_PATH = os.environ.get('CREDENTIALS_PATH', 'credentials.json')

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Serious

    install fetches a script from the network. README documents an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    README.md, line 40

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

    Dockerfile, line 21

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

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL

    src/mcp_google_sheets/server.py, line 33

    CREDENTIALS_CONFIG = os.environ.get('CREDENTIALS_CONFIG')

    src/mcp_google_sheets/server.py, line 34

    TOKEN_PATH = os.environ.get('TOKEN_PATH', 'token.json')

    src/mcp_google_sheets/server.py, line 35

    CREDENTIALS_PATH = os.environ.get('CREDENTIALS_PATH', 'credentials.json')

    Show more

    .dockerignore, line 3

    dist/

    .gitignore, line 8

    **/credentials.json

    README.md, line 123

    "SERVICE_ACCOUNT_PATH": "/path/to/credentials.json"

    README.md, line 138

    "SERVICE_ACCOUNT_PATH": "/path/to/credentials.json",

    README.md, line 327

    * `CREDENTIALS_PATH`: Path to the downloaded OAuth credentials JSON file (default: `credentials.json`).

    README.md, line 335

    1. **Get your credentials JSON file** (either Service Account key or OAuth Client ID file). Let's call it `your_credentials.json`.

    README.md, line 337

    * **(Linux/macOS):** `base64 -w 0 your_credentials.json`

    README.md, line 340

    $filePath = "C:\path\to\your_credentials.json"; # Use actual path

  • 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 b2f98244590f. install fetches a script from the network. README documents an installer that pipes a download into a shell. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: b2f98244590f1d0982505f4faa908731278ea998

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