CVE-2026-53638
Impact
An authorization bypass vulnerability exists in the shop account API. The PATCH /api/v2/shop/account/orders/{tokenValue}/payments/{paymentId} endpoint, used by an authenticated shop customer to change the payment method of an order that has been placed but not yet paid (state STATE_NEW), does not validate that the chosen payment method is enabled for the order's channel. The equivalent checkout endpoint (PATCH /api/v2/shop/orders/{tokenValue}/payments/{paymentId}) correctly rejects out-of-channel payment methods with HTTP 422; the account endpoint silently accepts them and returns HTTP 200.
An authenticated customer can therefore assign any globally enabled payment method to their own placed order, including methods that the store operator has explicitly excluded from that channel.
Patches
The issue is fixed in versions: 2.0.18, 2.1.15, 2.2.6 and above.
Workarounds
If users cannot bump Sylius right now, decorate the Sylius\Bundle\ApiBundle\Changer\PaymentMethodChangerInterface service in their applications.
Step 1. Create the decorator
src/Decorator/ChannelCheckingPaymentMethodChanger.php:
<?php
declare(strict_types=1);
namespace App\Decorator;
use ApiPlatform\Validator\Exception\ValidationException;
use Sylius\Bundle\ApiBundle\Changer\PaymentMethodChangerInterface;
use Sylius\Component\Core\Model\OrderInterface;
use Sylius\Component\Core\Model\PaymentMethodInterface;
use Sylius\Component\Core\Repository\PaymentMethodRepositoryInterface;
use Sylius\Component\Core\Repository\PaymentRepositoryInterface;
use Sylius\Component\Payment\Resolver\PaymentMethodsResolverInterface;
use Symfony\Component\Validator\ConstraintViolation;
use Symfony\Component\Validator\ConstraintViolationList;
use Symfony\Contracts\Translation\TranslatorInterface;
final readonly class ChannelCheckingPaymentMethodChanger implements PaymentMethodChangerInterface
{
public function __construct(
private PaymentMethodChangerInterface $decorated,
private PaymentRepositoryInterface $payme
⚡ Watch CVE-2026-53638
Get an email if CVE-2026-53638 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Advisory coverage (1)
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-53638)