{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.47.7"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "efa80ab9391c81becedb9b00f19c11e81925902f"
            }
          ],
          "repo": "https://github.com/signalapp/signal-android",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The Signal Private Messenger application before 4.47.7 for Android allows a caller to force a call to be answered, without callee user interaction, via a connect message. The existence of the call is noticeable to the callee; however, the audio channel may be open before the callee can block eavesdropping.",
  "id": "CVE-2019-17191",
  "modified": "2026-03-13T21:55:22.746101680Z",
  "published": "2019-10-05T02:15:11.300Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://twitter.com/moxie/status/1180261210341511168"
    },
    {
      "type": "REPORT",
      "url": "https://news.ycombinator.com/item?id=21161432"
    },
    {
      "type": "EVIDENCE",
      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1943"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}