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.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| unaffected |
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No data available yet.
Vendor Solution
Upgrade to Business-GoCardless 1.01 or later.
Tracking
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Fri, 30 Oct 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | 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 | |
| Weaknesses | CWE-639 | |
| References |
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Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-10-30T12:56:46.887Z
Reserved: 2026-10-29T11:38:31.745Z
Link: CVE-2026-119038
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-30T13:18:32.783
Modified: 2026-10-30T13:18:32.783
Link: CVE-2026-119038
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-10-30T15:00:15Z
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CWE-639
Authorization Bypass Through User-Controlled Key