github - ghsa-vg5j-h7r8-88x8

GHSA-VG5J-H7R8-88X8

Vulnerability from github – Published: 2024-07-02 21:32 – Updated: 2025-10-22 00:33

Details

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. (Authy accounts were not compromised, however.)

Severity ?

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2024-39891"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-02T18:15:03Z",
    "severity": "MODERATE"
  },
  "details": "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. (Authy accounts were not compromised, however.)",
  "id": "GHSA-vg5j-h7r8-88x8",
  "modified": "2025-10-22T00:33:04Z",
  "published": "2024-07-02T21:32:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39891"
    },
    {
      "type": "WEB",
      "url": "https://cwe.mitre.org/data/definitions/203.html"
    },
    {
      "type": "WEB",
      "url": "https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-39891"
    },
    {
      "type": "WEB",
      "url": "https://www.twilio.com/docs/usage/security/reporting-vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "https://www.twilio.com/en-us/changelog"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-39891 (GCVE-0-2024-39891)

Vulnerability from cvelistv5 – Published: 2024-07-02 00:00 – Updated: 2025-10-21 22:55

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.)

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N

CWE

Assigner

mitre

References

URL

Tags

	https://cwe.mitre.org/data/definitions/203.html
	https://www.twilio.com/docs/usage/security/report…
	https://www.twilio.com/en-us/changelog
	https://www.bleepingcomputer.com/news/security/ha…

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:twilio:authy_2-factor_authentication:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "authy_2-factor_authentication",
            "vendor": "twilio",
            "versions": [
              {
                "lessThan": "26.1.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "lessThan": "25.1.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:twilio:authy_2-factor_authentication:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "authy_2-factor_authentication",
            "vendor": "twilio",
            "versions": [
              {
                "lessThan": "26.1.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "lessThan": "25.1.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-39891",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-23T03:55:42.678226Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2024-07-23",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-39891"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-203",
                "description": "CWE-203 Observable Discrepancy",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T22:55:50.240Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-39891"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2024-07-23T00:00:00+00:00",
            "value": "CVE-2024-39891 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:33:11.402Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cwe.mitre.org/data/definitions/203.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.twilio.com/docs/usage/security/reporting-vulnerabilities"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.twilio.com/en-us/changelog"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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.)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-07-03T22:07:07.423Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://cwe.mitre.org/data/definitions/203.html"
        },
        {
          "url": "https://www.twilio.com/docs/usage/security/reporting-vulnerabilities"
        },
        {
          "url": "https://www.twilio.com/en-us/changelog"
        },
        {
          "url": "https://www.bleepingcomputer.com/news/security/hackers-abused-api-to-verify-millions-of-authy-mfa-phone-numbers/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-39891",
    "datePublished": "2024-07-02T00:00:00.000Z",
    "dateReserved": "2024-07-02T00:00:00.000Z",
    "dateUpdated": "2025-10-21T22:55:50.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-VG5J-H7R8-88X8

CVE-2024-39891 (GCVE-0-2024-39891)

Tags

Sightings

Nomenclature