nvd-get-cve

Fetch a single CVE record by id. Convenience wrapper over search.

SERVERMeta Data Mcp SOURCEpypi:meta-data-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/nvd-get-cve.md

WHAT IT DOES

What nvd-get-cve does on Meta Data Mcp

AI agents call nvd-get-cve to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why nvd-get-cve is rated Low

This tool performs a data retrieval operation on the National Vulnerability Database (NVD), similar to a GET request. There are no indications of modification, deletion, execution of code, or financial transactions. The server provides access to 76 open data APIs, and this tool simply queries one of them.

From the tool's definition Tool description: 'Fetch a single CVE record by id' — retrieves data with no side effects. The term 'fetch' and 'wrapper over search' indicate read-only querying of a public vulnerability database (NVD).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs nvd-get-cve safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nvd-get-cve, this is the rule to start with:

nvd-get-cve Allowed

nvd-get-cve is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nvd-get-cve": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every nvd-get-cve call is checked against it from then on.

FAQ

Questions about nvd-get-cve

What does the nvd-get-cve tool do? +

Fetch a single CVE record by id. Convenience wrapper over search. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on nvd-get-cve? +

Register the Meta Data MCP server in PolicyLayer and add a rule for nvd-get-cve: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Meta Data Mcp. Nothing to install.

What risk level is nvd-get-cve? +

nvd-get-cve is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit nvd-get-cve? +

Yes. Add a rate_limit block to the nvd-get-cve rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block nvd-get-cve completely? +

Set action: deny in the PolicyLayer policy for nvd-get-cve. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides nvd-get-cve? +

nvd-get-cve is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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