VULNERABILITY INTELLIGENCE

CVE-2024-39891

CVSS score5.3 MEDIUM
EPSS probability1.67%
CISA KEVKnown exploited vulnerability
Published2024-07-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Known Exploited Vulnerability

Twilio Authy Information Disclosure Vulnerability

Vendor / product: Twilio / Authy

Description

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.)

Weakness classification

  • CWE-203: Observable Discrepancy

Primary references