readout MCP Server Security Report
Measured readings on open-source dependencies: health, end-of-life, model prices, incidents.
Run it securely
This server scored F. Run it behind runtime policy enforcement so one bad tool call can't become an incident.
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Claim this server- criticalNo command-injection sinks — 20 occurrences
The short answer
- Is readout safe to use?
- readout scores 16/100 (grade F) on the Canopii Trust Index, and carries 1 confirmed security failure that caps its score: No command-injection sinks. It passes 13 of the 22 controls that apply to it.
- What security issues does readout have?
- readout fails 1 control: No command-injection sinks. Each failure on this page carries the evidence behind it — the file and line, dependency, or CVE that decided it.
- How reliable is the security score for readout?
- We could evaluate 90% of the controls that apply to readout. 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 readout 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.
Security controlslatest scored version v1.0.0
Each control is evaluated deterministically with evidence. The score is earned from passing controls; a failed guard caps it.
Security controlslatest scored version v1.0.0
Each control is evaluated deterministically with evidence. The score is earned from passing controls; a failed guard caps it.
Model–MCP Runtime Guardrails
- PassIndirect Prompt Injection (IPI) Defensesguardno injection markers
Tool/prompt/resource text is free of hidden instructions that could hijack the agent.
- PassStrict JSON Schema EnforcementadditionalProperties:false present
Tool inputs are constrained (additionalProperties:false), so unexpected arguments can't be smuggled in.
- PassUser-in-the-Loop / Approval Scopeguardno destructive tool scope
No over-broad or destructive tools (arbitrary shell, bulk-delete) that warrant human approval.
- N/ATool Definition Integrityguardno prior version to diff
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.
Application Security Checks
- FailNo command-injection sinksguard20 occurrences
Untrusted tool input reaching a shell yields remote code execution. How many servers fail this?
action/check.mjs:72action/check.mjs:75action/check.mjs:140scripts/build-brand.mjs:31Fix: Never pass tool arguments to a shell; use argv arrays with shell disabled.
- WarnNo path traversalguard26 occurrences
Naive path checks let tools read/write outside intended directories (EscapeRoute-class).
action/check.mjs:69action/check.mjs:69functions/api/mcp.ts:343scripts/announce.ts:17Fix: Resolve to a canonical path and verify containment; reject ../ and symlinks.
- WarnNo SSRF sinksguard20 occurrences
Fetching tool-supplied URLs can pivot into internal networks and metadata services.
action/check.mjs:84action/check.mjs:146functions/api/ask.ts:274functions/api/auth/github/callback.ts:88Fix: Allow-list destinations; reject arbitrary/loopback/link-local URLs.
- WarnHas 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.
- WarnAdoption & 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.
- PassNo dynamic code executionguardno sinks found
eval()/exec()/Function() on tool-derived strings allows arbitrary code execution.
- PassNo unsafe deserializationguardno sinks found
pickle/yaml.load/etc. on untrusted data can execute code.
- PassNo committed secretsguardno secrets found
Hardcoded keys/tokens in published source are live credentials an attacker can use.
- PassCredentials sourced from environmentreads credentials from environment
Reading secrets from env/secret stores avoids hardcoding them.
- PassDependencies pinned (lockfile)lockfile present
A lockfile makes installs reproducible and resistant to silent dependency swaps.
- PassActively maintainedrecent commits
Unmaintained servers don't receive security fixes.
- PassRepository not archivedguardactive
Archived repositories will never be patched.
- PassDeclares a licenseMIT
A clear license is required for legal enterprise use.
- Not checkedNo known-vulnerable dependenciesno lockfile found
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.
- Not checkedSigned releasesnot evaluated
Signed releases let consumers verify artifacts weren't tampered with.
- N/ANo install/post-install scriptsguardno published package
install hooks run arbitrary code on every consumer at install time.
- N/APackage name not typosquattingguardno published package
Names mimicking popular packages are a common malware delivery vector.
- N/APublished with provenanceno published package
Build provenance attests the artifact was built from the claimed source by CI.
- N/AEstablished maintainerno published package
Brand-new / single anonymous maintainers raise takeover and malware risk.
Transport & Trust Model
- WarnIAM / Authentication Scopingno authentication handling detected
OAuth 2.1 / Protected Resource Metadata gates who can invoke tools.
Fix: Implement OAuth 2.1 with a .well-known/oauth-protected-resource document.
- WarnExecution 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.
- PassTransport Encryption (TLS)guardall remotes use HTTPS
Plaintext HTTP exposes traffic and bearer tokens to interception.
- PassNetwork Exposureno bind-all detected
Binding 0.0.0.0 or exposing debug inspectors widens the attack surface.
- N/ALive Endpoint Reachablenot dynamically scanned
A dynamic scan connected to the declared remote endpoint and it responded — verified live, not a dead URL.
- N/AAuthentication 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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[](https://index.canopii.dev/server/io.github.kaitzyy-dev/readout)<a href="https://index.canopii.dev/server/io.github.kaitzyy-dev/readout"><img src="https://index.canopii.dev/api/badge/io.github.kaitzyy-dev/readout" alt="Canopii Trust Score" /></a>Versions
| Version | Score | Status | Published |
|---|---|---|---|
| v1.0.0latest | 16F | scored | 8/7/2026 |
Wondering how this compares? The MCP Security Index tracks grade distribution, committed secrets, and missing authentication across the whole ecosystem, refreshed monthly.