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ClosedPatched

Twilio Authy Information Disclosure

Twilio Authy

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. Added to the CISA KEV catalog on 2024-07-23.

Why this severity: CVSS 5.3 (v3.1, CNA), actively exploited (CISA KEV)

Started
Jul 2, 2024
Closed
Jul 23, 2024

Follow this incident

Affected

  • See vendor advisory (versions are not listed in the KEV record)

Fixed in

  • See vendor advisory linked in sources

Timeline2

  1. CISA added CVE-2024-39891 to the KEV catalog (federal deadline 2024-08-13)

    Source
  2. CVE-2024-39891 published

    Source

Advisories3

Notes & caveats

Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).

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