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io.github.lonniev/personalbrain-mcp

io.github.lonniev/personalbrain-mcp v1.16.3

Security Trust Score
Grade D · Weak posture
Tier 1 · Public sourceHigh confidence · 98%
Declared MCP capabilities
ResourcesPrompts

This server scored D. Run it behind runtime policy enforcement so one bad tool call can't become an incident.

1 issue capping this score
  • highTool descriptions free of injection markers — 4 marker(s) across 4 tool(s)
Reputation3stars0forks0open issuestodaylast commit<1yage

Security controls

Deterministic, evidence-backed. Score earned from passing controls; a failed guard caps it.

Model–MCP Runtime Guardrails

  • Fail
    Indirect Prompt Injection (IPI) Defensesguard4 marker(s) across 4 tool(s)

    Tool/prompt/resource text is free of hidden instructions that could hijack the agent.

    brain_request_credential_channel — exfiltration directivebrain_receive_credentials — exfiltration directivebrain_request_patron_credentials — exfiltration directivebrain_receive_patron_credentials — exfiltration directive

    Fix: Remove hidden directives, HTML/comment instructions, and override phrasing from descriptions.

  • Warn
    Strict JSON Schema Enforcementschemas not strict

    Tool inputs are constrained (additionalProperties:false), so unexpected arguments can't be smuggled in.

    Fix: Set additionalProperties:false and require explicit parameters on every tool.

  • Pass
    User-in-the-Loop / Approval Scopeguardno destructive tool scope

    No over-broad or destructive tools (arbitrary shell, bulk-delete) that warrant human approval.

  • N/A
    Tool Definition Stabilityguardno prior version to diff

    Tool definitions did not change after publish — no post-approval rug-pull.

Application Security Checks

  • Warn
    No known-vulnerable dependencies6 of 101 runtime deps vulnerable; worst high

    Runtime dependencies (parsed from the lockfile) are scanned against OSV.dev for published CVEs. Advisory: flagged dependencies lower the score but don't hard-cap it, since transitive reachability is unproven.

    [email protected] — GHSA-537c-gmf6-5ccf[email protected] — GHSA-hvrp-rf83-w775[email protected] — GHSA-jpw9-pfvf-9f58[email protected] — GHSA-vj7q-gjh5-988w

    Fix: Upgrade the flagged dependencies past their fixed versions.

  • Warn
    Has a security policyno security policy

    A SECURITY.md gives a private path to report vulnerabilities.

    Fix: Add SECURITY.md with a disclosure contact and process.

  • Warn
    Adoption & popularitylimited adoption

    A small, capped nudge from stars/downloads — widely-used servers get more eyes on bugs. It can never offset a real security failure.

    Fix: Adoption grows naturally with real-world use; this never gates the score.

  • Pass
    No command-injection sinksguardno sinks found

    Untrusted tool input reaching a shell yields remote code execution.

  • Pass
    No dynamic code executionguardno sinks found

    eval()/exec()/Function() on tool-derived strings allows arbitrary code execution.

  • Pass
    No path traversalguardno sinks found

    Naive path checks let tools read/write outside intended directories (EscapeRoute-class).

  • Pass
    No SSRF sinksguardno sinks found

    Fetching tool-supplied URLs can pivot into internal networks and metadata services.

  • Pass
    No unsafe deserializationguardno sinks found

    pickle/yaml.load/etc. on untrusted data can execute code.

  • Pass
    No committed secretsguardno secrets found

    Hardcoded keys/tokens in published source are live credentials an attacker can use.

  • Pass
    Credentials sourced from environmentreads credentials from environment

    Reading secrets from env/secret stores avoids hardcoding them.

  • Pass
    Dependencies pinned (lockfile)lockfile present

    A lockfile makes installs reproducible and resistant to silent dependency swaps.

  • Pass
    Actively maintainedrecent commits

    Unmaintained servers don't receive security fixes.

  • Pass
    Repository not archivedguardactive

    Archived repositories will never be patched.

  • Pass
    Declares a licenseApache-2.0

    A clear license is required for legal enterprise use.

  • Not checked
    Signed releasesnot evaluated

    Signed releases let consumers verify artifacts weren't tampered with.

  • N/A
    No install/post-install scriptsguardno published package

    install hooks run arbitrary code on every consumer at install time.

  • N/A
    Package name not typosquattingguardno published package

    Names mimicking popular packages are a common malware delivery vector.

  • N/A
    Published with provenanceno published package

    Build provenance attests the artifact was built from the claimed source by CI.

  • N/A
    Established maintainerno published package

    Brand-new / single anonymous maintainers raise takeover and malware risk.

Transport & Trust Model

  • Warn
    Execution Sandboxingruns natively (no container image)

    A container/sandbox image limits blast radius; a server that runs natively has full host access.

    Fix: Ship a Dockerfile/Containerfile (or document a sandboxed run) so the server runs isolated.

  • Pass
    Transport Encryption (TLS)guardall remotes use HTTPS

    Plaintext HTTP exposes traffic and bearer tokens to interception.

  • Pass
    IAM / Authentication ScopingOAuth / PRM handling detected

    OAuth 2.1 / Protected Resource Metadata gates who can invoke tools.

  • Pass
    Network Exposureno bind-all detected

    Binding 0.0.0.0 or exposing debug inspectors widens the attack surface.

  • N/A
    Live Endpoint Reachablenot dynamically scanned

    A dynamic scan connected to the declared remote endpoint and it responded — verified live, not a dead URL.

  • N/A
    Authentication Enforced (live)not dynamically scanned

    If the server declares auth is required, it must actually reject anonymous clients. Serving tools to unauthenticated callers is a real exposure.

Tools (80)

brain_get_linkbrain_get_notebrain_get_tagsbrain_get_brainbrain_get_typesbrain_brain_querybrain_check_pricebrain_create_linkbrain_delete_linkbrain_get_thoughtbrain_list_brainsbrain_mint_couponbrain_update_linkbrain_list_couponsbrain_oracle_aboutbrain_scan_orphansbrain_check_balancebrain_check_paymentbrain_delete_couponbrain_forget_couponbrain_morph_thoughtbrain_redeem_couponbrain_update_couponbrain_append_to_notebrain_create_thoughtbrain_delete_thoughtbrain_get_attachmentbrain_service_statusbrain_session_statusbrain_update_thoughtbrain_adoption_statusbrain_get_brain_statsbrain_list_my_couponsbrain_notarize_ledgerbrain_restore_creditsbrain_search_thoughtsbrain_event_for_personbrain_list_attachmentsbrain_purchase_creditsbrain_request_adoptionbrain_set_active_brainbrain_account_statementbrain_delete_attachmentbrain_get_modificationsbrain_get_nostr_profilebrain_get_pricing_modelbrain_get_thought_graphbrain_set_pricing_modelbrain_add_url_attachmentbrain_check_proof_statusbrain_forget_credentialsbrain_list_notarizationsbrain_oracle_how_to_joinbrain_receive_npub_proofbrain_request_npub_proofbrain_add_file_attachmentbrain_get_thought_by_namebrain_oracle_get_tax_ratebrain_receive_credentialsbrain_reset_pricing_modelbrain_restore_neon_schemabrain_oracle_lookup_memberbrain_create_or_update_notebrain_list_constraint_typesbrain_publish_nostr_profilebrain_get_attachment_contentbrain_get_notarization_proofbrain_check_authority_balancebrain_oracle_network_advisorybrain_delete_patron_credentialbrain_update_patron_credentialbrain_list_canonical_identitiesbrain_receive_patron_credentialsbrain_request_credential_channelbrain_request_patron_credentialsbrain_get_thought_graph_paginatedbrain_get_patron_credential_fieldsbrain_get_patron_onboarding_statusbrain_account_statement_infographicbrain_get_operator_onboarding_status