AbsoluteJS

@absolutejs/vulnerabilities-epss

@absolutejs/vulnerabilities-epssv0.1.6betaPlatform & Infra

FIRST EPSS probability and percentile ingestion for AbsoluteJS vulnerability prioritization.

#Installation

BASH
bun add @absolutejs/vulnerabilities-epss

#Capabilities

Overview

Official FIRST Exploit Prediction Scoring System ingestion for @absolutejs/vulnerabilities.

The adapter normalizes EPSS probability and percentile values to numbers from zero through one. It deduplicates and validates CVE identifiers, limits each request to 100 CVEs, keeps encoded URLs below 2,000 characters, rejects unrequested provider records, and emits the EPSS scoring date as its revision.

Outcomes

What you can build

Build on the supported package contract

Use @absolutejs/vulnerabilities-epss through its supported public entry points.

Hardening checklist

Production guidance

Make every external boundary explicitPin the deployed @absolutejs/vulnerabilities-epss version, replace example or memory-backed dependencies with durable implementations, bound external calls, protect credentials, and emit enough evidence to retry or recover safely.

Follow in order

Troubleshooting path

1
Trace from the first failed boundary
Reproduce the smallest canonical @absolutejs/vulnerabilities-epss example, confirm the supported entry point and version in the API explorer, then inspect the first boundary that did not produce its documented result.

#@absolutejs/vulnerabilities-epss quick start

Partial snippet

# @absolutejs/vulnerabilities-epss

TS
import { createEpssAdapter } from "@absolutejs/vulnerabilities-epss";

const adapter = createEpssAdapter({
  cves: ["CVE-2021-44228", "CVE-2024-3094"],
});

#Public entry points

Supported entry points declared by this package manifest.

Package entry point declared in package.json.

@absolutejs/vulnerabilities-epss@absolutejs/vulnerabilities-epss/manifest@absolutejs/vulnerabilities-epss/manifest.json

#Package commands

Scripts declared by this package manifest.

bun run buildrm -rf dist && bun build src/index.ts src/manifest.ts --outdir dist --target=bun --external @absolutejs/manifest --external @absolutejs/vulnerabilities --external '@absolutejs/vulnerabilities/*' --external @sinclair/typebox && tsc -p tsconfig.build.json && absolute-manifest emit
bun run check:packagebun run format && bun run typecheck && bun run test && bun run verify-package && bun run build && bun run verify-package --artifacts
bun run formatprettier --write "./**/*.{ts,json,md}"
bun run testbun test
bun run typechecktsc --noEmit

#API reference

Search the declarations exported by the current package type files. Expand a symbol to inspect its source-backed signature.

8 symbols
FIRST_EPSS_URLvaluePermalinkSource
TS
const FIRST_EPSS_URL = "https://api.first.org/data/v1/epss";
Exported from @absolutejs/vulnerabilities-epss