GHSA-mjgf-xj26-9qf9 (pay): pay-rails/pay - non-constant-time HMAC comparison in Paddle Billing webhook signature verifier
21-Jul-2026 1
Originally appeared on RubySec.## Summary The `Pay::Webhooks::PaddleBillingController#valid_signature?` (`app/controllers/pay/webhooks/paddle_billing_controller.rb`) verifies the Paddle Billing webhook signature by computing `OpenSSL::HMAC.hexdigest(...)` and comparing it to t...
GHSA-mjgf-xj26-9qf9 (pay): pay-rails/pay - non-constant-time HMAC comparison in Paddle Billing webhook signature verifier #ruby #rubydeveloper #rubyonrails #ruby #rubyonrails #programming #webdev #ghsa-mjgf-xj26-9qf9 #(pay): #webhook https://rubyonrails.ba/link/ghsa-mjgf-xj26-9qf9-pay-pay-rails-pay-non-constant-time-hmac-comparison-in-paddle-billing-webhook-signature-verifier