Skills/PyPI/mcprack

mcprack@1.1.0

VERIFIED· not started

Publisher claims: "Self-service MCP (Model Context Protocol) server catalog and client config generator" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher vitexsoftware · publishing for 265 daysInstalls 19Last detonated 3d ago
$claude mcp add mcprack -- uvx mcprack
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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: Verified 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
BW_CLIENTSECRETBW_PASSWORDLDAP_BIND_PASSWORDSECRET_KEYConfiguration, not credentials: AUDIT_RETENTION_DAYS, BITWARDENCLI_APPDATA_DIR, BW_BIN, BW_CLIENTID, BW_COMMAND_TIMEOUT, BW_ITEM_PREFIX, BW_LOCK_TIMEOUT, BW_SERVER, DEMO_MODE, LDAP_BASE_DN, LDAP_BIND_DN, LDAP_ENABLED, LDAP_SERVER, LDAP_USER_FILTER, LDAP_USER_OU, LOGIN_RATE_LIMIT, MAX_CONTENT_LENGTH, MCP_PROXY_HANDSHAKE_TIMEOUT, MCP_PROXY_LOCK_WAIT_TIMEOUT, OTEL_ENABLED, OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_PROTOCOL, OTEL_SERVICE_NAME, OTEL_TRACE_UI_URL_TEMPLATE, OTEL_TRACES_SAMPLER, RATELIMIT_STORAGE_URI, SESSION_COOKIE_SECURE, SESSION_LIFETIME_SECONDS, SQLALCHEMY_DATABASE_URI, STRICT_SERVER_PERMISSIONS
Where it talks to
no vendor host named in the codeAlso grafana.example, zzzcomputing.com, fosstodon.org, spojenet.cz — 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 with a scoped credential, under the guard, and read the third-party hosts first. The code names grafana.example, zzzcomputing.com, fosstodon.org, spojenet.cz as well as its own vendor. The guard injects BW_CLIENTSECRET, BW_PASSWORD, LDAP_BIND_PASSWORD, SECRET_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx mcprack

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 2026-11-11 and scored it 80/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. 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

HIGH
Privileged sudo commandmcprack/admin.py:570 · Privileged sudo command — agent may execute with elevated privileges"sudo usermod -aG docker mcprack && systemctl restart mcprack. "Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Credential pass-through configurationmcprack/app.py:35 · Credential pass-through configuration — agent relays sensitive credentials"per-user proxy tokens, so treat it like a password."Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
HIGH
Credential pass-through configurationmcprack/app.py:23 · Credential pass-through configuration — agent relays sensitive credentialsSECRET_KEY - it signs Flask sessions and per-user proxy tokensFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST02
MEDIUM
Python subprocess execution detectedmcprack/user_proxy.py:285 · Python subprocess execution detectedproc = subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/installer.py:137 · Python subprocess execution detectedproc = subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/vaultwarden.py:118 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/installer.py:280 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/version.py:20 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/installer.py:191 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/appstream_icons.py:175 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/health.py:63 · Python subprocess execution detectedproc = subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedmcprack/installer.py:298 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_detection.py:69 · MCP server using network transport (SSE/HTTP) — data sent over networkassert by_name["zabbix-mcp-server"]["url"] == "http://mcphost.spojenet.cz:3100/mcp"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
LOW
Authorization escalation languageREADME.md:658 · Authorization escalation language · informational: not an instruction filethis is well-known to be equivalent to root access, since a `docker` groupFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_admin_autodetect.py:45 · MCP server using network transport (SSE/HTTP) — data sent over networkassert servers["zabbix-mcp-server"].transport == "http"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
Python subprocess execution detectedmcprack/installer.py:310 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_detection.py:68 · MCP server using network transport (SSE/HTTP) — data sent over networkassert by_name["zabbix-mcp-server"]["transport"] == "http"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
LOW
Authorization escalation languagemcprack/openapi/openapi.yaml:674 · Authorization escalation language · informational: not an instruction filedescription: Admin privileges requiredFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
Python subprocess execution detectedmcprack/detection.py:72 · Python subprocess execution detectedreturn subprocess.run(args, capture_output=True, text=True, check=False)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_admin_autodetect.py:46 · MCP server using network transport (SSE/HTTP) — data sent over networkassert servers["zabbix-mcp-server"].url == "http://mcphost:3100/mcp"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

Cost to the agent

Instructions loaded
≈55 tok
1 file · 81 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 mcprack@1.1.0 as of 3d ago. This is the package itself, not its dependencies.