openapi: 3.1.0
info:
  title: NVD CVE CPE CPE Match API
  description: 'The NVD CVE API provides programmatic access to CVE (Common Vulnerabilities and Exposures) records including CVSS severity scores, affected product lists, CWE classifications, and reference links. Without an API key: 5 requests per 30 seconds; with key: 50 requests per 30 seconds.'
  version: 2.0.0
  contact:
    name: NVD Support
    url: https://nvd.nist.gov/general/contact
  license:
    name: Public Domain (US Government)
    url: https://nvd.nist.gov/developers/terms-of-use
servers:
- url: https://services.nvd.nist.gov/rest/json
  description: NVD REST API v2
security:
- {}
- APIKey: []
tags:
- name: CPE Match
  description: CVE-to-product match criteria
paths:
  /cpematch/2.0:
    get:
      operationId: getCPEMatch
      summary: Get CPE match criteria
      description: Retrieve CPE match strings associated with CVE records, enabling detailed product-to-vulnerability mapping. Returns up to 500 results per page.
      tags:
      - CPE Match
      parameters:
      - name: cveId
        in: query
        schema:
          type: string
      - name: matchCriteriaId
        in: query
        schema:
          type: string
          format: uuid
      - name: lastModStartDate
        in: query
        schema:
          type: string
          format: date-time
      - name: lastModEndDate
        in: query
        schema:
          type: string
          format: date-time
      - name: resultsPerPage
        in: query
        schema:
          type: integer
          default: 500
          maximum: 500
      - name: startIndex
        in: query
        schema:
          type: integer
          default: 0
      responses:
        '200':
          description: CPE match criteria
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CPEMatchResponse'
components:
  schemas:
    CPEMatchResponse:
      type: object
      properties:
        resultsPerPage:
          type: integer
        startIndex:
          type: integer
        totalResults:
          type: integer
        timestamp:
          type: string
          format: date-time
        matchStrings:
          type: array
          items:
            type: object
            properties:
              matchString:
                type: object
                properties:
                  matchCriteriaId:
                    type: string
                    format: uuid
                  criteria:
                    type: string
                  lastModified:
                    type: string
                    format: date-time
                  cpeLastModified:
                    type: string
                    format: date-time
                  created:
                    type: string
                    format: date-time
                  status:
                    type: string
                    enum:
                    - Active
                    - Inactive
                  matches:
                    type: array
                    items:
                      type: object
                      properties:
                        cpeName:
                          type: string
                        cpeNameId:
                          type: string
                          format: uuid
  securitySchemes:
    APIKey:
      type: apiKey
      in: header
      name: apiKey
      description: 'NVD API key (optional but recommended). Without a key: 5 requests/30s. With a key: 50 requests/30s. Request at https://nvd.nist.gov/developers/request-an-api-key'
externalDocs:
  description: NVD Developer Documentation
  url: https://nvd.nist.gov/developers/vulnerabilities