Read the docs
TI-2024-26788 Aliases CVE-2024-39891GHSA-vg5j-h7r8-88x8

In the Twilio Authy API, accessed by Authy Android before 25.1.0 and Authy iOS before…

Priority HIGH 81Exploited in the wildCWE-203Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-203.

Summary

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.)

Why it matters now

Exploitation Active In CISA KEV since 2024-07-23CISA due date 2024-08-13
EPSS 0.01669 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:twilio:authy:*:*:*:*:*:iphone_os:*:*before 26.1.0VulnerableTwilio
cpe:2.3:a:twilio:authy_authenticator:*:*:*:*:*:android:*:*before 25.1.0VulnerableTwilio
  • cpe:2.3:a:twilio:authy:*:*:*:*:*:iphone_os:*:* Versions before 26.1.0 Vulnerable ·Twilio
  • cpe:2.3:a:twilio:authy_authenticator:*:*:*:*:*:android:*:* Versions before 25.1.0 Vulnerable ·Twilio

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2024-07-23 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2024-39891
  3. 2026-10-03 Alias added: GHSA-vg5j-h7r8-88x8

References

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences