CVE-2024-39891

{"id": "CVE-2024-39891", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2024-07-02T18:15:03.447", "references": [{"url": "https://cwe.mitre.org/data/definitions/203.html", "tags": ["Technical Description"], "source": "cve@mitre.org"}, {"url": "https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers/", "tags": ["Press/Media Coverage"], "source": "cve@mitre.org"}, {"url": "https://www.twilio.com/docs/usage/security/reporting-vulnerabilities", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://www.twilio.com/en-us/changelog", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://cwe.mitre.org/data/definitions/203.html", "tags": ["Technical Description"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers/", "tags": ["Press/Media Coverage"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.twilio.com/docs/usage/security/reporting-vulnerabilities", "tags": ["Product"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.twilio.com/en-us/changelog", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-39891", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-203"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-203"}]}], "descriptions": [{"lang": "en", "value": "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.)"}, {"lang": "es", "value": "En la API de Twilio Authy, a la que acced\u00edan Authy Android antes de la versi\u00f3n 25.1.0 y Authy iOS antes de la versi\u00f3n 26.1.0, un endpoint no autenticado proporcionaba acceso a determinados datos de n\u00fameros de tel\u00e9fono, como se explot\u00f3 en junio de 2024. En concreto, el endpoint aceptaba un flujo de solicitudes que conten\u00edan n\u00fameros de tel\u00e9fono y respond\u00eda con informaci\u00f3n sobre si cada n\u00famero de tel\u00e9fono estaba registrado en Authy. (Sin embargo, las cuentas de Authy no se vieron comprometidas)."}], "lastModified": "2025-10-21T23:16:32.490", "cisaActionDue": "2024-08-13", "cisaExploitAdd": "2024-07-23", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:twilio:authy:*:*:*:*:*:iphone_os:*:*", "vulnerable": true, "matchCriteriaId": "F645AEA3-6ACC-4386-ACA9-793E66DBF31E", "versionEndExcluding": "26.1.0"}, {"criteria": "cpe:2.3:a:twilio:authy_authenticator:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "07B60ED3-2C9B-46F8-9B6C-1FFB46067D06", "versionEndExcluding": "25.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org", "cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Twilio Authy Information Disclosure Vulnerability"}