Skills/PyPI/mcp-vulnscan

mcp-vulnscan@0.2.1

CAUTION· not started

Publisher claims: "Static analysis tool for MCP server Python code — detects security vulnerabilities via AST and taint tracking." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher anaygarodia · publishing for 225 daysInstalls 12Last detonated 4d ago
What would fix thisWatchDispute verdict

Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Caution here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
no vendor host named in the codeAlso mitre.org, githubusercontent.com — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx mcp-vulnscan

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-10 and scored it 76/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: OS command execution function call detected. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

MEDIUM
OS command execution function call detectedtests/test_scanner.py:140 · OS command execution function call detectedvuln.write_text('import os\ndef run(cmd: str): os.system(cmd)\n')Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Python subprocess execution detectedtests/test_shell_injection.py:82 · Python subprocess execution detectedassert "subprocess.run()" in findings[0].descriptionFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_shell_injection.py:53 · OS command execution function call detectedos.system(user_input)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_scanner.py:155 · OS command execution function call detectedsrc = "def run(cmd: str):\n import os\n os.system(cmd)\n"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
GitHub token pattern detectedtests/test_hardcoded_secrets.py:139 · GitHub token pattern detected — possible hardcoded or harvested tokensrc = 'token = "ghp_AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"'Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Access to sensitive file pathstests/test_path_traversal.py:494 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system fileswith open(file="/etc/passwd", mode=mode) as f:Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcpaudit/rules/shell_injection.py:105 · Python subprocess execution detected"Use subprocess.run() with a list of arguments and shell=False. "Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_shell_injection.py:78 · Python subprocess execution detectedreturn subprocess.run(cmd, shell=True, capture_output=True).stdoutFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_shell_injection.py:66 · OS command execution function call detectedos.popen(user_input)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_prompt_injection.py:219 · Python subprocess execution detectedreturn subprocess.check_output("uptime").decode()Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_scanner.py:173 · OS command execution function call detectedsrc = "def run(cmd: str):\n import os\n os.system(cmd) # mcpaudit: ignore[CWE-78]\n"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Python subprocess execution detectedtests/test_prompt_injection.py:131 · Python subprocess execution detectedresult = subprocess.run(cmd, shell=True, capture_output=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcpaudit/rules/_taint.py:101 · Python subprocess execution detected`sp.run(...)` is resolved to `subprocess.run(...)` by `_resolve_module`.Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_shell_injection.py:264 · OS command execution function call detectedos.system(cmd)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
CRITICAL
OS command execution function call detectedsrc/mcpaudit/rules/shell_injection.py:15 · OS command execution function call detected- os.system / os.popen (always execute via shell)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcpaudit/rules/prompt_injection.py:15 · Python subprocess execution detectedsubprocess.check_output(user_cmd)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_scanner.py:134 · OS command execution function call detectedvuln.write_text('import os\ndef run(cmd: str): os.system(cmd)\n')Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Stripe-like API key pattern detectedtests/test_hardcoded_secrets.py:56 · Stripe-like API key pattern detected — possible hardcoded or harvested keysrc = 'api_key = "sk_live_realkey1234567890"'Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
OS command execution function call detectedtests/test_shell_injection.py:239 · OS command execution function call detectedos.system(cmd)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_scanner.py:165 · OS command execution function call detectedsrc = "def run(cmd: str):\n import os\n os.system(cmd) # mcpaudit: ignore\n"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Python subprocess execution detectedtests/test_prompt_injection.py:120 · Python subprocess execution detectedreturn subprocess.check_output(cmd, shell=True).decode()Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_shell_injection.py:124 · Python subprocess execution detectedreturn subprocess.check_output(cmd, shell=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_shell_injection.py:90 · Python subprocess execution detectedproc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
OS command execution function call detectedtests/test_shell_injection.py:252 · OS command execution function call detectedos.system(cmd)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
GitHub token pattern detectedtests/test_hardcoded_secrets.py:133 · GitHub token pattern detected — possible hardcoded or harvested tokensrc = 'token = "ghs_AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"'Fix: Never read or enumerate credential locations; accept a documented environment variable instead.
AST03
MEDIUM
Python subprocess execution detectedtests/test_shell_injection.py:102 · Python subprocess execution detectedreturn subprocess.call(cmd, shell=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05

Cost to the agent

Instructions loaded
≈64 tok
1 file · 46 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mcp-vulnscan@0.2.1 as of 4d ago. This is the package itself, not its dependencies.

What would make this Verified

4 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%
  1. Unclaimed publisher≈ +8 on the totalClaim anaygarodia: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
  2. OS command execution function call detected≈ +2 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
  3. Python subprocess execution detected≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
  4. GitHub token pattern detected≈ +2 on the totalNever read or enumerate credential locations; accept a documented environment variable instead.
  5. Access to sensitive file paths≈ +2 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
  6. Stripe-like API key pattern detected≈ +2 on the totalNever read or enumerate credential locations; accept a documented environment variable instead.
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