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daiso-mcp MCP Server Security Report

hmmhmmhm/daiso-mcp

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Security Trust Score
Grade B · Moderate posture
Tier 1 · Public sourceHigh confidence · 98%latest vmain@a92595e Repository
Declared MCP capabilities
ResourcesPrompts

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The short answer

Is daiso-mcp safe to use?
daiso-mcp scores 88/100 (grade B) on the Canopii Trust Index — good, minor gaps. It passes 16 of the 21 security controls that apply to it, with no confirmed security failures.
How reliable is the security score for daiso-mcp?
We could evaluate 98% of the controls that apply to daiso-mcp. Scores are deterministic — the same source always produces the same score — and a partially-scannable server cannot present a high one, because confidence caps the result. The scanner is open source, so this score can be reproduced independently.
How was daiso-mcp scored?
Its published source was scanned against a fixed catalog of weighted security controls covering code safety, committed secrets, dependency vulnerabilities, tool-description integrity, authentication and transport, and maintenance. A confirmed flaw caps the score outright regardless of what else passes. The full rubric is published.
Reputation320stars22forks10open issues36d agolast commit<1yage

Security controlslatest scored version vmain@a92595e

Each control is evaluated deterministically with evidence. The score is earned from passing controls; a failed guard caps it.

Model–MCP Runtime Guardrails

  • Pass
    Indirect Prompt Injection (IPI) Defensesguardno injection markers

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

  • Pass
    Strict JSON Schema EnforcementadditionalProperties:false present

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

  • Pass
    Tool Definition Integrityguardtool definitions stable; no risky changes in version history

    Every consecutive version pair is diffed for new injection markers or destructive scope — a risky diff anywhere in history is a rug-pull (fail, durable); benign description drift warns.

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

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

Application Security Checks

  • Warn
    No path traversalguard64 occurrences

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

    docs/oliveyoung-replay-session-test.ts:26docs/oliveyoung-replay-session-test.ts:27docs/oliveyoung-replay-session-test.ts:28docs/oliveyoung-replay-session-test.ts:29

    Fix: Resolve to a canonical path and verify containment; reject ../ and symlinks.

  • Warn
    No SSRF sinksguard9 occurrences

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

    docs/daiso-test-replay.ts:22docs/oliveyoung-replay-session-test.ts:37docs/oliveyoung-replay-session-test.ts:122src/services/cgv/transport.ts:99

    Fix: Allow-list destinations; reject arbitrary/loopback/link-local URLs.

  • Warn
    No known-vulnerable dependencies3 of 199 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-7p8r-x3mc-p8w7[email protected] — GHSA-54fx-42gc-7vw4[email protected] — GHSA-79qm-7rj5-m7r9[email protected] — GHSA-8j4g-w8fx-2239

    Fix: Upgrade the flagged dependencies past their fixed versions.

  • 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 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 licenseMIT

    A clear license is required for legal enterprise use.

  • Pass
    Has a security policySECURITY.md present

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

  • Pass
    Adoption & popularityestablished adoption

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

  • 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
    Network Exposureno bind-all detected

    Binding 0.0.0.0 or exposing debug inspectors widens the attack surface.

  • N/A
    Transport Encryption (TLS)guardno remote endpoints

    Plaintext HTTP exposes traffic and bearer tokens to interception.

  • N/A
    IAM / Authentication Scopingno remote endpoints

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

  • 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.

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Versions

VersionScoreStatus
vmain@d17fd5b92Ascored
vmain@8767a3992Ascored
vmain@2e1d2ee92Ascored
vmain@34400d092Ascored
vmain@9c0d8d792Ascored
vmain@8c510c792Ascored
vmain@ca1cc8f92Ascored
vmain@7e4844a90Ascored
vmain@2c128dc92Ascored
vmain@2c312ed92Ascored
vmain@d8751a892Ascored
vmain@c0464b892Ascored
vmain@cc5ab5388Bscored
vmain@5f98b8888Bscored
vmain@160307688Bscored
vmain@056639288Bscored
vmain@13cb7b688Bscored
vmain@c32aad088Bscored
vmain@860c15988Bscored
vmain@3404b8c88Bscored
vmain@747113988Bscored
vmain@2a49b5688Bscored
vmain@4b03c5588Bscored
vmain@a791bd188Bscored
vmain@bd95adf88Bscored
vmain@d3cb49f88Bscored
vmain@7df7c5888Bscored
vmain@ab4c11c88Bscored
vmain@638c7b888Bscored
vmain@917bd1a88Bscored
vmain@a92595elatest88Bscored
vmain@deaa38a16Fscored
vmain@f77527916Fscored
vmain@1cb55e016Fscored
vmain@592148216Fscored
vmain@256cc4016Fscored
vmain@4aa01c916Fscored
vmain@458e6ad88Bscored

Wondering how this compares? The MCP Security Index tracks grade distribution, committed secrets, and missing authentication across the whole ecosystem, refreshed monthly.