{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.0",
  "cveMetadata": {
    "cveId": "CVE-2020-36564"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc"
      },
      "title": "Improper input validation in github.com/justinas/nosurf",
      "descriptions": [
        {
          "lang": "en",
          "value": "Due to improper validation of caller input, validation is silently disabled if the provided expected token is malformed, causing any user supplied token to be considered valid."
        }
      ],
      "affected": [
        {
          "vendor": "github.com/justinas/nosurf",
          "product": "github.com/justinas/nosurf",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "github.com/justinas/nosurf",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.1.1",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "VerifyToken"
            },
            {
              "name": "verifyToken"
            },
            {
              "name": "CSRFHandler.ServeHTTP"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE 345: Insufficient Verification of Data Authenticity"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/justinas/nosurf/pull/60"
        },
        {
          "url": "https://github.com/justinas/nosurf/commit/4d86df7a4affa1fa50ab39fb09aac56c3ce9c314"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2020-0049"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "@aeneasr"
        }
      ]
    }
  }
}