CVE-2024-39891

Published Jul 2, 2024 CVSS 3.1 · 5.3 Medium EPSS 1.7% KEV · Listed
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.)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Twilio authy 2-factor Authentication
CPEs cpe:2.3:a:twilio:authy_2-factor_authentication:*:*:*:*:*:*:*:*
Vendors & Products Twilio authy 2-factor Authentication
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 21, 2025, 10:55 PM
Reserved
Jul 2, 2024, 12:00 AM
Status
Analyzed
Published
Jul 2, 2024, 6:15 PM
Modified
Jun 17, 2026, 7:42 AM