{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119037","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","state":"PUBLISHED","assignerShortName":"CPANSec","dateReserved":"2026-10-29T11:38:31.744Z","datePublished":"2026-10-30T12:56:27.922Z","dateUpdated":"2026-10-30T12:56:27.922Z"},"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":{"orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec","dateUpdated":"2026-10-30T12:56:27.922Z"},"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"}}}}