epss_api.py•1.14 kB
from typing import Any, Dict
import httpx
# Constants
EPSS_API_BASE = "https://api.first.org/data/v1/epss?cve="
async def fetch_epss_data(cve_id: str) -> Dict[str, Any] | None:
"""Fetch the EPSS percentile and score for a given CVE ID."""
url = f"{EPSS_API_BASE}{cve_id}"
async with httpx.AsyncClient() as client:
try:
response = await client.get(url, timeout=30.0)
response.raise_for_status()
data = response.json()
# Validate the JSON structure
if not isinstance(data, dict) or "data" not in data or not data["data"]:
return {"epss_percentile": "N/A", "epss_score": "N/A"}
epss_data = data["data"][0]
return {
"epss_percentile": epss_data.get("percentile", "N/A"),
"epss_score": epss_data.get("epss", "N/A")
}
except httpx.RequestError:
pass
except httpx.HTTPStatusError:
pass
except ValueError:
pass
except Exception:
pass
return {"epss_percentile": "N/A", "epss_score": "N/A"}
