io.github.mleoca/ucn

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

  pass15% of grade

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

  Reads secrets from the environment (e.g. languages/index.js) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  fail15% of grade

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

  HIGH: shell/exec capability AND network egress together — download-and-execute risk (core/analysis.js: imports child_process and calls exec/spawn; core/bridge.js: outbound HTTP/socket call). HIGH: shell/exec capability AND destructive filesystem writes together (core/analysis.js: imports child_process and calls exec/spawn; core/analysis.js: path traversal ('../') combined with file access). discloses shell/exec capability: core/analysis.js: imports child_process and calls exec/spawn discloses shell/exec capability: core/brief.js: imports child_process discloses shell/exec capability: core/git-enrich.js: imports child_process and calls exec/spawn discloses dynamic code execution: core/shared.js: uses new Function(…) discloses dynamic code execution: core/shared.js: uses eval(…) discloses dynamic code execution: core/stacktrace.js: uses eval(…) discloses broad/destructive filesystem access: core/analysis.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/analysis.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/brief.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/build-worker.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/cache.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: core/cache.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/callers.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/deadcode.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/discovery.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/endpoints.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/entrypoints.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/find.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/graph-build.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/graph.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/graph.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/imports.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: cli/index.js: destructive/writing fs.* call (write/unlink/rm/chmod/rename) discloses broad/destructive filesystem access: cli/index.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: languages/javascript.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/parser.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/project.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/reporting.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/reporting.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/search.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/search.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: mcp/server.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/shared.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/output/tracing.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/tracing.js: path traversal ('../') combined with file access discloses broad/destructive filesystem access: core/verify.js: path traversal ('../') combined with file access Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• Version behavior

  pass10% of grade

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

  tool surface, capabilities, install scripts, and publisher unchanged vs prior version 4.2.2 (patch bump); no rug-pull drift.

• 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