Low Risk

lookup_cve

Get full threat intelligence enrichment for a CVE including EPSS score, CISA KEV status, public exploits, Nuclei templates, risk level, and risk factors. Input must be a valid CVE ID.

Part of the Sectora server.

lookup_cve is read-only, but an agent in a loop can still rack up calls and cost. PolicyLayer caps every call before it runs. Live in minutes.

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AI agents call lookup_cve to retrieve information from Sectora without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though lookup_cve only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "lookup_cve": {}
  }
}

See the full Sectora policy for all 14 tools.

Get this rule live on your own Sectora server in minutes. PolicyLayer enforces it on every call, before it runs.

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These attack patterns abuse exactly the kind of access lookup_cve gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so lookup_cve only ever does what you allow.

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Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.

What does the lookup_cve tool do? +

Get full threat intelligence enrichment for a CVE including EPSS score, CISA KEV status, public exploits, Nuclei templates, risk level, and risk factors. Input must be a valid CVE ID.. It is categorised as a Read tool in the Sectora MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on lookup_cve? +

Register the Sectora MCP server in PolicyLayer and add a rule for lookup_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 Sectora. Nothing to install.

What risk level is lookup_cve? +

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

Can I rate-limit lookup_cve? +

Yes. Add a rate_limit block to the lookup_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 lookup_cve completely? +

Set action: deny in the PolicyLayer policy for lookup_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 lookup_cve? +

lookup_cve is provided by the Sectora MCP server (https://mcp.sectora.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sectora tool call.

Deterministic rules across all 14 Sectora tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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