CVE-2026-47741Shopper: Race condition on Discount.usage_limit allows silent over-redemption

Beschreibung

Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, CreateOrderFromCartAction::execute previously created the Order row before checking and incrementing the discount's total_use counter. Under concurrent checkout pressure (Black Friday, flash sale, viral coupon), the global usage_limit was silently exceeded: orders were committed with the discount fully applied to price_amount while the counter blocked at usage_limit. The merchant had no signal that an over-redemption had occurred. This vulnerability is fixed in 2.8.0.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://github.com/shopperlabs/shopper/security/advisories/GHSA-9rh9-hf3w-9fgg
• https://github.com/shopperlabs/shopper/issues/510
• https://github.com/shopperlabs/shopper/pull/511