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com.vulnrable/vulnrable

by vulnrable.com · remote · no sign-in to list tools · v1.0.0 · published by com.vulnrable

Security grades for MCP servers and npm/PyPI packages, ranked by CISA KEV and EPSS.

Changes · 3
CompareRegistry entry

4 tools: 3 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http vulnrable https://vulnrable.com/api/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 3Claude Code: ask
  • check_cveDetails for one CVE or GHSA identifier, including whether CISA lists it as actively exploited (KEV) and its EPSS exploitation probability.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Details for one CVE or GHSA identifier, including whether CISA lists it as actively exploited (KEV) and its EPSS exploitation probability. Use to judge real-world urgency.
  • check_packageSecurity assessment of one npm or PyPI package: letter grade, findings, known vulnerabilities, deprecation status, and — for MCP servers in our directory — the real resolved depend…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Security assessment of one npm or PyPI package: letter grade, findings, known vulnerabilities, deprecation status, and — for MCP servers in our directory — the real resolved dependency count. Use before recommending or installing a package.
  • latest_vulnsRecently published vulnerabilities from the tracked pool, ranked KEV-first then by EPSS.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Recently published vulnerabilities from the tracked pool, ranked KEV-first then by EPSS. Use for "what should I worry about this week".
Only reads 1Claude Code: allow
  • list_mcp_serversThe MCP server directory with real resolved dependency counts.No findings

    Why it is in this group

    • The name "list_mcp_servers" says "list": a word for reading.
    Description, as the server wrote it
    The MCP server directory with real resolved dependency counts. Use when recommending an MCP server, or to compare how much third-party code candidates pull into the agent. For a graded security assessment of one server, call check_package.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http vulnrable https://vulnrable.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__vulnrable__list_mcp_servers"
    ],
    "ask": [
      "mcp__vulnrable__check_package",
      "mcp__vulnrable__check_cve",
      "mcp__vulnrable__latest_vulns"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as vulnrable. Review it before you use it.