Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Telegram Mcp

MCP server that lets Claude Code drive your own Telegram account: read chats, send and edit messages, publish posts to channels, create channels/groups, join by invite links, press inline buttons, send/download files, and create bots through @BotFather.

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

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    src/telegram_mcp/core.py, line 543 with urllib.request.urlopen(request, timeout=timeout) as response:

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/telegram_mcp/core.py, line 30 SENSITIVE_SUFFIXES = (".env", ".session", ".pem", ".key")

  • PERMISSION_SHELL_DECLARED Note

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

    src/telegram_mcp/gui_screen.py, line 97 previous = subprocess.run(["pbpaste"], capture_output=True, encoding="utf-8", env=UTF8_ENV).stdout

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

    src/telegram_mcp/gui_screen.py, line 97

    previous = subprocess.run(["pbpaste"], capture_output=True, encoding="utf-8", env=UTF8_ENV).stdout

    src/telegram_mcp/gui_screen.py, line 98

    subprocess.run(["pbcopy"], input=text, encoding="utf-8", env=UTF8_ENV, check=True)

    src/telegram_mcp/gui_screen.py, line 104

    subprocess.run(["pbcopy"], input=previous, encoding="utf-8", env=UTF8_ENV)

    Show more

    src/telegram_mcp/gui_screen.py, line 107

    front = subprocess.run(

    src/telegram_mcp/gui_screen.py, line 112

    subprocess.run(["osascript", "-e", f'tell application "{name}" to activate'], capture_output=True)

    src/telegram_mcp/gui_screen.py, line 116

    done = subprocess.run(["open", "-a", name], capture_output=True, text=True)

    src/telegram_mcp/gui_screen.py, line 120

    subprocess.run(["osascript", "-e", f'tell application "{name}" to activate'], capture_output=True)

  • 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/telegram_mcp/core.py, line 543

    with urllib.request.urlopen(request, timeout=timeout) as response:

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    src/telegram_mcp/core.py, line 30

    SENSITIVE_SUFFIXES = (".env", ".session", ".pem", ".key")

    .gitignore, line 7

    *.session-journal

    .gitignore, line 9

    *.env

    Show more

    CLAUDE.md, line 39

    - `send_file` refuses `~/.telegram-mcp`, `~/.ssh`, hidden paths and `*.env/*.session/*.key/*.pem`

    CLAUDE.md, line 66

    equals full account access. `.gitignore` also blocks `*.session`, `*.env`.

    README.md, line 64

    - `send_file` refuses credential files (`~/.telegram-mcp`, `~/.ssh`, dotfiles, `*.env`, `*.session`, keys).

  • 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.

Get the full report on this tool, £49

Note

Hygiene check of commit f374173802ba. 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.

Date and source

Date checked:

View source

github.com

Commit graded: f374173802ba8d6f9f9b23c34e07878f54fa6892

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