CVE-2026-71537 Paymenter: Credit-refund double-spend race condition in service downgrade (doUpgrade)

Paymenter is a free and open-source webshop solution for management of hosting services. Prior to 1.5.7, app/Livewire/Services/Upgrade.php::doUpgrade relies on Service::upgradable to check for a pending service upgrade and later executes $credit-increment'amount', abs$price without DB::transactio...

CVE-2026-55219

CVE-2026-55219 – Paymenter race condition (version

CVE-2026-55219 Paymenter: Race condition in payWithCredit() enables credit double-spend

Paymenter is a free and open-source webshop solution for management of hosting services. In versions prior to 1.5.5, the credit payment implementation in app/Livewire/Invoices/Show.php executes a pessimistic row lock lockForUpdate outside of an active database transaction. Because MySQL/MariaDB...

GHSA-PGCQ-8GRM-5RX9 Paymenter has race condition in payWithCredit() that enables credit double-spend

Summary The credit payment implementation in app/Livewire/Invoices/Show.php executes a pessimistic row lock lockForUpdate outside of an active database transaction. Because MySQL/MariaDB requires an enclosing transaction to enforce row-level locks, the guard is ineffective. Concurrent payment...

Paymenter has race condition in payWithCredit() that enables credit double-spend

Summary The credit payment implementation in app/Livewire/Invoices/Show.php executes a pessimistic row lock lockForUpdate outside of an active database transaction. Because MySQL/MariaDB requires an enclosing transaction to enforce row-level locks, the guard is ineffective. Concurrent payment...