{
  "$schema": "http://json-schema.org/draft-07/schema",
  "title": "Modified JSON Schema for cve_items returned by the NVD Vulnerability Data API version 2.0",
  "definitions": {
    "cvss-v2": {
      "properties": {
        "source": { "type": "string" },
        "type": { "enum": ["Primary", "Secondary"] },
        "cvssData": {
          "$ref": "cvss-v2.0.schema.json"
        },
        "baseSeverity": { "type": "string" },
        "exploitabilityScore": { "$ref": "#/definitions/def_subscore" },
        "impactScore": { "$ref": "#/definitions/def_subscore" },
        "acInsufInfo": { "type": "boolean" },
        "obtainAllPrivilege": { "type": "boolean" },
        "obtainUserPrivilege": { "type": "boolean" },
        "obtainOtherPrivilege": { "type": "boolean" },
        "userInteractionRequired": { "type": "boolean" }
      },
      "required": ["source", "type", "cvssData"],
      "additionalProperties": false
    },

    "cvss-v30": {
      "properties": {
        "source": { "type": "string" },
        "type": { "enum": ["Primary", "Secondary"] },
        "cvssData": {
          "$ref": "cvss-v3.0.schema.json"
        },
        "exploitabilityScore": { "$ref": "#/definitions/def_subscore" },
        "impactScore": { "$ref": "#/definitions/def_subscore" }
      },
      "required": ["source", "type", "cvssData"],
      "additionalProperties": false
    },

    "cvss-v31": {
      "properties": {
        "source": { "type": "string" },
        "type": { "enum": ["Primary", "Secondary"] },
        "cvssData": {
          "$ref": "cvss-v3.1.schema.json"
        },
        "exploitabilityScore": { "$ref": "#/definitions/def_subscore" },
        "impactScore": { "$ref": "#/definitions/def_subscore" }
      },
      "required": ["source", "type", "cvssData"],
      "additionalProperties": false
    },

    "cve_id": {
      "type": "string",
      "pattern": "^CVE-[0-9]{4}-[0-9]{4,}$"
    },
    "lang_string": {
      "type": "object",
      "properties": {
        "lang": { "type": "string" },
        "value": { "type": "string", "maxLength": 4096 }
      },
      "required": ["lang", "value"],
      "additionalProperties": false
    },
    "reference": {
      "type": "object",
      "properties": {
        "url": {
          "maxLength": 500,
          "type": "string",
          "pattern": "^(ftp|http)s?://\\S+$"
        },
        "source": { "type": "string" },
        "tags": {
          "type": "array",
          "items": { "type": "string" }
        }
      },
      "required": ["url"],
      "additionalProperties": false
    },
    "vendorComment": {
      "type": "object",
      "properties": {
        "organization": { "type": "string" },
        "comment": { "type": "string" },
        "lastModified": { "type": "string", "format": "iso-date-time" }
      },
      "required": ["organization", "comment", "lastModified"],
      "additionalProperties": false
    },
    "weakness": {
      "properties": {
        "source": { "type": "string" },
        "type": { "type": "string" },
        "description": {
          "type": "array",
          "minItems": 0,
          "items": { "$ref": "#/definitions/lang_string" }
        }
      },
      "required": ["source", "type", "description"],
      "additionalProperties": false
    },
    "config": {
      "properties": {
        "operator": { "type": "string", "enum": ["AND", "OR"] },
        "negate": { "type": "boolean" },
        "nodes": { "type": "array", "items": { "$ref": "#/definitions/node" } }
      },
      "required": ["nodes"],
      "additionalProperties": false
    },
    "node": {
      "description": "Defines a configuration node in an NVD applicability statement.",
      "properties": {
        "operator": { "type": "string", "enum": ["AND", "OR"] },
        "negate": { "type": "boolean" },
        "cpeMatch": {
          "type": "array",
          "items": { "$ref": "#/definitions/cpe_match" }
        }
      },
      "required": ["operator", "cpeMatch"],
      "additionalProperties": false
    },
    "cpe_match": {
      "description": "CPE match string or range",
      "type": "object",
      "properties": {
        "vulnerable": { "type": "boolean" },
        "criteria": { "type": "string" },
        "matchCriteriaId": { "type": "string", "format": "uuid" },
        "versionStartExcluding": { "type": "string" },
        "versionStartIncluding": { "type": "string" },
        "versionEndExcluding": { "type": "string" },
        "versionEndIncluding": { "type": "string" }
      },
      "required": ["vulnerable", "criteria", "matchCriteriaId"],
      "additionalProperties": false
    },
    "def_subscore": {
      "description": "CVSS subscore.",
      "type": "number",
      "minimum": 0,
      "maximum": 10
    }
  },

  "type": "object",
  "properties": {
    "id": { "$ref": "#/definitions/cve_id" },
    "sourceIdentifier": { "type": "string" },
    "vulnStatus": { "type": "string" },
    "published": { "type": "string", "format": "iso-date-time" },
    "lastModified": { "type": "string", "format": "iso-date-time" },
    "evaluatorComment": { "type": "string" },
    "evaluatorSolution": { "type": "string" },
    "evaluatorImpact": { "type": "string" },
    "cisaExploitAdd": { "type": "string", "format": "date" },
    "cisaActionDue": { "type": "string", "format": "date" },
    "cisaRequiredAction": { "type": "string" },
    "cisaVulnerabilityName": { "type": "string" },
    "descriptions": {
      "type": "array",
      "minItems": 1,
      "items": { "$ref": "#/definitions/lang_string" }
    },
    "references": {
      "type": "array",
      "items": { "$ref": "#/definitions/reference" },
      "maxItems": 500,
      "minItems": 0
    },
    "metrics": {
      "description": "Metric scores for a vulnerability as found on NVD.",
      "type": "object",
      "properties": {
        "cvssMetricV31": {
          "description": "CVSS V3.1 score.",
          "type": "array",
          "items": { "$ref": "#/definitions/cvss-v31" }
        },
        "cvssMetricV30": {
          "description": "CVSS V3.0 score.",
          "type": "array",
          "items": { "$ref": "#/definitions/cvss-v30" }
        },
        "cvssMetricV2": {
          "description": "CVSS V2.0 score.",
          "type": "array",
          "items": { "$ref": "#/definitions/cvss-v2" }
        }
      },
      "additionalProperties": false
    },
    "weaknesses": {
      "type": "array",
      "items": { "$ref": "#/definitions/weakness" }
    },
    "configurations": {
      "type": "array",
      "items": { "$ref": "#/definitions/config" }
    },
    "vendorComments": {
      "type": "array",
      "items": { "$ref": "#/definitions/vendorComment" }
    }
  },
  "required": ["id", "published", "lastModified", "references", "descriptions"],
  "additionalProperties": false
}