CVE-2024-39891 – Twilio Authy Information Disclosure Vulnerability

https://notcve.org/view.php?id=CVE-2024-39891

In the Twilio Authy API, accessed by Authy Android before 25.1.0 and Authy iOS before 26.1.0, an unauthenticated endpoint provided access to certain phone-number data, as exploited in the wild in June 2024. Specifically, the endpoint accepted a stream of requests containing phone numbers, and responded with information about whether each phone number was registered with Authy. (Authy accounts were not compromised, however.) En la API de Twilio Authy, a la que accedía Authy Android antes de 25.1.0 y Authy iOS antes de 26.1.0, un endpoint no autenticado proporcionaba acceso a ciertos datos de números de teléfono. (Sin embargo, las cuentas de Authy no se vieron comprometidas). • https://cwe.mitre.org/data/definitions/203.html https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers https://www.twilio.com/docs/usage/security/reporting-vulnerabilities https://www.twilio.com/en-us/changelog • CWE-203: Observable Discrepancy •