July 23, 2024 · Applied Cybernetics Group
CVE-2024-39891 — Twilio Authy
Twilio Authy Information Disclosure Vulnerability
- Added to KEV
2024-07-23- Federal due date
2024-08-13- Vendor
- Twilio
- Product
- Authy
- EPSS
- 95.1th percentile (score 0.171, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-39891
CISA short description
Twilio Authy contains an information disclosure vulnerability in its API that allows an unauthenticated endpoint to accept a request containing a phone number and respond with information about whether the phone number was registered with Authy.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.