# CVE-2026-119038: 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

Status: published. Published: 2026-10-30. Updated: 2026-11-06.

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.

## Remediation

- fix: Upgrade to Business-GoCardless 1.01 or later. (source: CNA: CPANSec)

## Affected products and versions

-  /  (Business-GoCardless): ≥ 0; < 1.01 (affected, custom). Source: CNA: CPANSec

## Severity and prioritization

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: ADP: CISA-ADP

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-06; percentile 5.96%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes (CNA: CPANSec; release-notes)

- https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes (9b29abf9-4ab0-4765-b253-1875cd9b441e)

## Provenance

- CNA: CPANSec: https://www.cve.org/CVERecord?id=CVE-2026-119038; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119038; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119038; retrieved 2026-11-06; source updated Not reported

Revision: 75d83e3e0b9d66dd4f16aff706983ad0fb40e34c17204448a630c18fdff74a2c

Canonical: https://y2.dev/cve/CVE-2026-119038

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