Vulnerability 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.)
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Twilio | Authy | < 26.1.0 |
| Twilio | Authy Authenticator | < 25.1.0 |
Related Weaknesses (CWE)
References
- https://cwe.mitre.org/data/definitions/203.htmlTechnical Description
- https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millPress/Media Coverage
- https://www.twilio.com/docs/usage/security/reporting-vulnerabilitiesProduct
- https://www.twilio.com/en-us/changelogRelease Notes
- https://cwe.mitre.org/data/definitions/203.htmlTechnical Description
- https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millPress/Media Coverage
- https://www.twilio.com/docs/usage/security/reporting-vulnerabilitiesProduct
- https://www.twilio.com/en-us/changelogRelease Notes
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-US Government Resource
FAQ
What is CVE-2024-39891?
CVE-2024-39891 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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...
How severe is CVE-2024-39891?
CVE-2024-39891 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-39891?
Check the references section above for vendor advisories and patch information. Affected products include: Twilio Authy, Twilio Authy Authenticator.