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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

Published
Last modified
published
Listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

The Twilio Authy API and the Authy Android and iOS apps (older versions) are affected. An unauthenticated endpoint let anyone check whether phone numbers were registered with Authy, exposing certain phone-number data, though Authy accounts themselves were not compromised.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.)

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated

Affected versions

  • n/a n/a

    Version range not reported

References 4

cwe.mitre.org

twilio.com

bleepingcomputer.com