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Medium 5.3
Adyen APIs Library for Python timing attack vulnerability
Adyen has utility methods for validating notification HMAC signatures. The `is_valid_hmac` and `is_valid_hmac_notification` methods are vulnerable to a timing attack, you should compare the hash of the HMACs instead.
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Unscored —
Adyen has utility methods for validating notification HMAC signatures. The is_valid_hmac and is_valid_hmac_notification…