{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Business::GoCardless"
          ],
          "packageName": "Business-GoCardless",
          "packageURL": "pkg:cpan/Business-GoCardless",
          "programFiles": [
            "lib/Business/GoCardless/Utils.pm"
          ],
          "programRoutines": [
            {
              "name": "Business::GoCardless::Utils::signature_valid"
            }
          ],
          "repo": "https://github.com/payprop/business-gocardless",
          "versions": [
            {
              "lessThan": "1.01",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.\n\nsignature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is.\n\nA remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:56:27.922Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to Business-GoCardless 1.01 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-119037",
    "datePublished": "2026-10-30T12:56:27.922Z",
    "dateReserved": "2026-10-29T11:38:31.744Z",
    "dateUpdated": "2026-10-30T12:56:27.922Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}