io.github.HewlettPackard/greenlake-subscriptions-mcp

What we checked

Six static checks, weighted by risk. Every result reflects only what could be observed in the published package and repository — never intent.

• Injection surface

  unscannable25% of grade

  Tool descriptions/manifest scanned for instruction-injection patterns (imperatives at the model, hidden text, 'ignore previous', data-exfil URLs).

  No tool descriptions, server instructions, prompts, or resources were fetched; nothing to scan for injection.

• Supply chain

  pass25% of grade

  Package provenance: namespace verification, repo linkage, maintainer count, account age, postinstall scripts, typosquat distance.

  repository linkage verified

• Credential hygiene

  warn15% of grade

  How the server takes secrets (env vs plaintext config vs hardcoded); secrets appearing in tool schemas.

  tests/test_auth_template.py: assigns a literal to token (expi…en (len 13)) — non-provider secret literal; prefer environment intake. tests/test_auth_template.py: assigns a literal to token (soon…ng (len 13)) — non-provider secret literal; prefer environment intake. Reads secrets from the environment (e.g. greenlake_subscriptions_mcp/config/logging.py) — the recommended intake shape.

• Permission scope

  pass15% of grade

  Declared tools vs. breadth (filesystem, network, exec); flags shell-exec and unbounded filesystem access.

  Network egress present (greenlake_subscriptions_mcp/auth/oauth2_provider.py: outbound HTTP/socket call) — expected for most servers and not a finding on its own. No shell-exec, unbounded/sensitive filesystem, or download-and-run primitives found in scanned source. PASS = no static red flag. Static scanning is blind to code fetched or executed at runtime.

• Version behavior

  fail10% of grade

  Diff of tool definitions between versions; new permissions or changed descriptions in a patch release (the postmark-mcp class).

  vs prior 1.1.1 (patch bump): new capability primitive(s) in source: http-client, subprocess; new hardcoded outbound host/BCC destination(s): api.example.test, file.test.api.com, github.com, global.api.greenlake.hpe.com, mock.api.com, mock.subscriptions.com, production.com, secure.subscriptions.com, subscriptions.example.com, subscriptions.integration.com, test.api.com, test.com.

• Transport config

  warn10% of grade

  Remote servers: TLS and auth mode (none/token/OAuth). Local servers: whether the manifest indicates it phones home.

  manifest/source references tracking behavior — disclosure