Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Ms Graph Mcp

Ms Graph Mcp, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/ms_graph_mcp/email.py, line 349 # ── Track F (Wave 2b) - attachment fetch (non-tool helper) ──────────────────

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/ms_graph_mcp/config.py, line 12 A ``.env`` file in the working directory is loaded if present.

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    scripts/check_docs.py, line 164 out = subprocess.run(

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    src/ms_graph_mcp/stdio.py, line 46 static_token = os.getenv("GRAPH_MCP_ACCESS_TOKEN", "")

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    uv.lock, line 1 version = 1

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.

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

    scripts/check_docs.py, line 164

    out = subprocess.run(

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/ms_graph_mcp/email.py, line 349

    # ── Track F (Wave 2b) - attachment fetch (non-tool helper) ──────────────────

    src/ms_graph_mcp/internal.py, line 269

    # probe (no user token), binary message-attachment fetch (base64 out), and the

    .github/workflows/release.yml, line 130

    with urllib.request.urlopen(

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/ms_graph_mcp/config.py, line 12

    A ``.env`` file in the working directory is loaded if present.

    src/ms_graph_mcp/config.py, line 34

    env_file=".env",

    src/ms_graph_mcp/stdio.py, line 46

    static_token = os.getenv("GRAPH_MCP_ACCESS_TOKEN", "")

    Show more

    src/ms_graph_mcp/entra/config.py, line 29

    env_file=("../.env.local", ".env"),

    .dockerignore, line 21

    # tenant and client ids, and the token cache holds live refresh tokens.

    .dockerignore, line 22

    .env

    .env.example, line 3

    # Copy to `.env` (gitignored) and fill in. Every setting is optional - the

    .env.example, line 7

    # NEVER commit a real token or secret. `.env` is gitignored; this file is not.

    .github/pull_request_template.md, line 25

    - [ ] Documented in `docs/configuration.md` **and** `.env.example`

  • 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.

Get the full report on this tool, £49

Note

Hygiene check of commit 5625f57a51a1. requests shell access. The manifest names this permission. 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.

Date and source

Date checked:

View source

github.com

Commit graded: 5625f57a51a128880d39215038f92223d9ee526a

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