CPANSA-Business-GoCardless-2026-119038: Business-GoCardless vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-10-30T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-10-30T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | Severity | ||
| Original language | Language | en | |
| Also referred to | |||
Vulnerability Description
Business::GoCardless versions before 1.01 for Perl complete redirect flows without checking the session token, letting a leaked redirect flow ID create payments against another customer's mandate.
confirm_resource takes no session token from the caller. It reads the redirect flow back from the GoCardless API and completes it with the token from that response, so the check that the flow is completed by the session that started it always passes. It then creates the requested payment or subscription against the flow's mandate. Since version 1.00, a flow that already has a mandate is returned as confirmed without being completed again, so the same ID creates a new payment on every call.
A remote attacker who obtains another customer's redirect flow ID can create payments or subscriptions against that customer's mandate.
Vulnerabilities
CVE-2026-119038
Vulnerability DescriptionBusiness::GoCardless versions before 1.01 for Perl complete redirect flows without checking the session token, letting a leaked redirect flow ID create payments against another customer's mandate.
confirm_resource takes no session token from the caller. It reads the redirect flow back from the GoCardless API and completes it with the token from that response, so the check that the flow is completed by the session that started it always passes. It then creates the requested payment or subscription against the flow's mandate. Since version 1.00, a flow that already has a mandate is returned as confirmed without being completed again, so the same ID creates a new payment on every call.
A remote attacker who obtains another customer's redirect flow ID can create payments or subscriptions against that customer's mandate.
| Weakness | CWE-639 : Authorization Bypass Through User-Controlled Key |
|---|
Product status
Known affected
| Product | Score | ||||
|---|---|---|---|---|---|
| Business-GoCardless less than 1.01 |
|
Fixed
- Business-GoCardless greater than or equal 1.01
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-Business-GoCardless-2026-119038 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-business-gocardless-2026-119038.json - https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes external
https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes - CVE-2026-119038 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-119038
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Fri Oct 30 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/