Is there a public exploit for CVE-2026-119037?

No public exploit for CVE-2026-119037 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

— Unscored

Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.

CVE-2026-119037

Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty. signaturevalid 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. A remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 30 October 2026
Weakness: CWE-347
Assigner: 9b29abf9-4ab0-4765-b253-1875cd9b441e

At the source

References

https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes

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