MCP, MCP server
Rubit Mcp Mail
Rubit Mcp Mail, an MCP server listed in the PlugVet directory.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
src/rubit_mcp_mail/claude_registration.py, line 38
result = subprocess.run(
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
Concern
requests shell access. No manifest field names shell or command execution. can delete files.
PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES
src/rubit_mcp_mail/claude_registration.py, line 38
result = subprocess.run(
src/rubit_mcp_mail/claude_registration.py, line 55
result = subprocess.run(
src/rubit_mcp_mail/installer_gui.py, line 335
subprocess.Popen([str(self._gui_path), "gui"], close_fds=True)
Show more
src/rubit_mcp_mail/shortcuts.py, line 144
subprocess.run([updater, str(directory)], capture_output=True, check=False)
src/rubit_mcp_mail/shortcuts.py, line 172
subprocess.run([updater, str(directory)], capture_output=True, check=False)
src/rubit_mcp_mail/shortcuts.py, line 216
result = subprocess.run(
src/rubit_mcp_mail/shortcuts.py, line 267
result = subprocess.run(
src/rubit_mcp_mail/uninstaller.py, line 45
Deliberately not `shutil.rmtree(config_file.parent)`: the secrets
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
website/scripts/fetch-releases.mjs, line 125
const res = await fetch(API, { headers, signal: AbortSignal.timeout(20_000) })
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
src/rubit_mcp_mail/secrets.py, line 52
if os.environ.get("RUBIT_MCP_MAIL_NO_KEYRING"):
website/nuxt.config.ts, line 127
// nothing. Set NUXT_PUBLIC_WEB3FORMS_KEY locally (website/.env) and as the
website/scripts/fetch-releases.mjs, line 122
const token = process.env.GITHUB_TOKEN || process.env.GH_TOKEN
Show more
website/.gitignore, line 15
# Local env (the Web3Forms key lives here in dev, and in repo secrets in CI)
website/.gitignore, line 16
.env
website/.gitignore, line 18
!.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
website/package-lock.json, line 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 4f4357dd2086. requests shell access. No manifest field names shell or command execution. can delete files. 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:
github.com
Commit graded: 4f4357dd20865e597c8df6b3019f01fd362a9d7f
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