Security advisory

{
  "id": "abb012532213353b407fce51f5bed26f1b3b923aa0de499c24a93a10a3d807a0",
  "url": "https://osv.dev/vulnerability/CVE-2019-10741",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-10741",
    "summary": "K-9 Mail v5.600 can include the original quoted HTML code of a specially crafted, benign looking, email within (digitally signed) reply messages. The quoted part can contain conditional statements that show completely different text if opened in a different email client. This can be abused by an attacker to obtain valid S/MIME or PGP signatures for arbitrary content to be displayed to a third party. NOTE: the vendor states \"We don't plan to take any action because of this.\"",
    "evidence": "osv:CVE-2019-10741",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-10741",
      "aliases": [
        "CVE-2019-10741"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/thunderbird/thunderbird-android",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a903bd6f81e929bdd486b12e24afe851d06b7dcf"
                },
                {
                  "last_affected": "a903bd6f81e929bdd486b12e24afe851d06b7dcf"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:k-9_mail_project:k-9_mail:5.600:*:*:*:*:android:*:*",
                    "range": [
                      {
                        "introduced": "5.600"
                      },
                      {
                        "last_affected": "5.600"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.600"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-10741.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:37.747075355Z",
      "provider": "osv",
      "references": [
        "https://github.com/k9mail/k-9/issues/3925"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-10741",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381919,
  "published_at": "2019-04-07T15:29:00.45+00:00"
}