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cve-cache

weiseer/cve-cache-mcp

A cached CVE and GitHub Security Advisory feed that lets your agent check vulnerabilities without hitting NVD or GHSA APIs directly. Exposes four tools: lookup_cve for individual records, find_for_package to scan npm/PyPI/Cargo/Maven/Go dependencies, list_recent_critical for high-severity issues from the past week, and severity_summary for counts by bucket. The pitch is speed and cost: sub-100ms lookups instead of multi-second API calls, and you avoid the token overhead of parsing verbose NVD JSON. Normalized across ecosystems so you get consistent schema whether you're auditing a Python or Rust project. Install globally via npm, wire it into Claude Desktop or any MCP client with npx, and you're querying the cache locally.

tools
4
transport
STDIO
env vars
2
last updated
May 30, 2026

Tools

4 tools

Public tool metadata for what this MCP can expose to an agent.

lookup_cvefull record for one CVE/GHSA ID

full record for one CVE/GHSA ID

No parameter schema in public metadata yet.

find_for_packageall CVEs affecting a package by ecosystem (npm/PyPI/Cargo/Maven/Go)

all CVEs affecting a package by ecosystem (npm/PyPI/Cargo/Maven/Go)

No parameter schema in public metadata yet.

list_recent_criticalrecent high-severity CVEs (default: 7-day, CVSS ≥ 7)

recent high-severity CVEs (default: 7-day, CVSS ≥ 7)

No parameter schema in public metadata yet.

severity_summarycounts by severity bucket

counts by severity bucket

No parameter schema in public metadata yet.

Sponsors

Configuration

CVE_CACHE_URL

Override remote snapshot URL

CVE_CACHE_LOCAL_ONLY

Skip remote fetch

Readme

@weiseer/cve-cache-mcp

Recent CVE + GHSA cache as a stdio MCP server.

Probe P-005 by weiseer.

What it does

Cached, structured snapshot of recent CVE + GitHub Security Advisory records — for AI agents auditing dependencies or screening new packages.

Your agent can:

  • lookup_cve — full record for one CVE/GHSA ID
  • find_for_package — all CVEs affecting a package by ecosystem (npm/PyPI/Cargo/Maven/Go)
  • list_recent_critical — recent high-severity CVEs (default: 7-day, CVSS ≥ 7)
  • severity_summary — counts by severity bucket

Why use this instead of your agent querying NVD itself

Agent DIYcve-cache
Source queryNVD JSON feeds + GHSA GraphQL1 MCP call
Token cost (NVD records are large)$0.05-0.20$0 free / $0.00005 paid
Latency2-10 seconds<100ms
Cross-ecosystem normalizationPer-source schemaPre-normalized

Install

npm install -g @weiseer/cve-cache-mcp

Use with Claude Desktop / Cursor / Cline / Continue / Windsurf

{
  "mcpServers": {
    "cve-cache": {
      "command": "npx",
      "args": ["-y", "@weiseer/cve-cache-mcp"]
    }
  }
}

View the full README on GitHub

Details

Repository
github.com/weiseer/cve-cache-mcp
Category
Security & Pentesting
Package
@weiseer/cve-cache-mcp
Transport
STDIO
Registry
MCP registry, active

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