CVE-2026-31825

Workarounds

An EventSubscriber that sanitizes order query parameters only on API routes before they reach the vulnerable filters.

The subscriber accepts an $apiRoute constructor parameter (default /api/v2) and skips non-API requests entirely, so there is zero overhead on shop/admin page requests.

This follows the same pattern used by Sylius's own KernelRequestEventSubscriber (src/Sylius/Bundle/ApiBundle/EventSubscriber/KernelRequestEventSubscriber.php), which also uses str_contains($pathInfo, $this->apiRoute) to scope logic to API routes.

Step 1, Create the EventSubscriber

src/EventSubscriber/SanitizeOrderDirectionSubscriber.php:

<?php

declare(strict_types=1);

namespace App\EventSubscriber;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\HttpKernel\KernelEvents;

final class SanitizeOrderDirectionSubscriber implements EventSubscriberInterface
{
    private const ALLOWED_DIRECTIONS = ['asc', 'desc'];

    public function __construct(
        private string $apiRoute,
    ) {
    }

    public static function getSubscribedEvents(): array
    {
        return [
            KernelEvents::REQUEST => ['sanitizeOrderParameters', 64],
        ];
    }

    public function sanitizeOrderParameters(RequestEvent $event): void
    {
        if (!str_contains($event->getRequest()->getPathInfo(), $this->apiRoute)) {
            return;
        }

        $request = $event->getRequest();

        /** @var mixed $order */
        $order = $request->query->all()['order'] ?? null;
        if (!is_array($order)) {
            return;
        }

        $needsSanitization = false;
        $sanitized = [];
        foreach ($order as $field => $direction) {
            if (is_string($direction) && in_array(strtolower($direction), self::ALLOWED_DIRECTIONS, true)) {
                $sanitized[$field] = $direction;
            } else {
                $needsSanitization = true;
            }
        }

        if (!$needsSanitization) {
            return;
        }

        $all = $request->query->all();
        $all['order'] = $sanitized;
        $request->query->replace($all);

        $request->server->set('QUERY_STRING', http_build_query($all));
        $request->attributes->set('_api_filters', $all);
    }
}

Step 2, Register the service

Option A, If your config/services.yaml already has App\ autowiring (Symfony default):

# Nothing to do, autoconfigure picks up EventSubscriberInterface automatically.
# Optionally bind the API route prefix:
services:
    App\EventSubscriber\SanitizeOrderDirectionSubscriber:
        arguments:
            $apiRoute: '%sylius.security.new_api_route%'

Option B, If there is no App\ autowiring:

services:
    App\EventSubscriber\SanitizeOrderDirectionSubscriber:
        arguments:
            $apiRoute: '%sylius.security.new_api_route%'
        tags: ['kernel.event_subscriber']

Using %sylius.security.new_api_route% ties the subscriber to the same prefix Sylius uses (/api/v2 by default). If the parameter is not available, hardcode '/api/v2' instead.

Step 3, Clear cache

bin/console cache:clear

Reporters

We would like to extend our gratitude to the following individuals for their detailed reporting and responsible disclosure of this vulnerability:

• Chris Alupului (@Neosprings)
• Bartłomiej Nowiński (@bnBart)

For more information

If you have any questions or comments about this advisory:

• Open an issue in Sylius issues
• Email us at [email protected]

Sylius API filters ProductPriceOrderFilter and TranslationOrderNameAndLocaleFilter pass user-supplied order direction values directly to Doctrine's orderBy() without validation. An attacker can inject arbitrary DQL:

GET /api/v2/shop/products?order[price]=ASC,%20variant.code%20DESC

Untrusted input alters a database query, allowing the attacker to read or modify data the query was not intended to access. Typical impact: data disclosure or modification.

CVE-2026-31825 has a CVSS score of 5.3 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3); upgrading removes the vulnerable code path.

Kodem intelligence

The issue is fixed in versions: 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3 and above.

1. What is CVE-2026-31825? CVE-2026-31825 is a medium-severity SQL injection vulnerability in sylius/sylius (composer), affecting versions <= 1.9.11. It is fixed in 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3. Untrusted input alters a database query, allowing the attacker to read or modify data the query was not intended to access.
2. How severe is CVE-2026-31825? CVE-2026-31825 has a CVSS score of 5.3 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of sylius/sylius are affected by CVE-2026-31825? sylius/sylius (composer) versions <= 1.9.11 is affected.
4. Is there a fix for CVE-2026-31825? Yes. CVE-2026-31825 is fixed in 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3. Upgrade to this version or later.
5. Is CVE-2026-31825 exploitable, and should I be worried? Whether CVE-2026-31825 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-31825 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-31825?
   • Upgrade sylius/sylius to 1.9.12 or later
   • Upgrade sylius/sylius to 1.10.16 or later
   • Upgrade sylius/sylius to 1.11.17 or later
   • Upgrade sylius/sylius to 1.12.23 or later
   • Upgrade sylius/sylius to 1.13.15 or later
   • Upgrade sylius/sylius to 1.14.18 or later
   • Upgrade sylius/sylius to 2.0.16 or later
   • Upgrade sylius/sylius to 2.1.12 or later
   • Upgrade sylius/sylius to 2.2.3 or later