CVE-2026-72535: Chaskiq

High severity, CVSS 8.6. EPSS: 0.6% chance of exploitation in the next 30 days.

A missing authentication vulnerability in Chaskiq through commit 46dfdd1 allows unauthenticated remote attackers to mint Stripe Billing Portal sessions for any tenant via the stripeCustomerPortal GraphQL mutation. The mutation performs no authentication or authorization checks before creating a customer portal session linked to any tenant Stripe account. An attacker can access and manage subscription data for any tenant without credentials.

Affected products

• Chaskiq Chaskiq: up to and including 46dfdd1

Published 2026-08-11. Last modified 2026-09-03.