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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-9149

Mailvelope prior to 3.3.0 allows private key operations without user interaction via its client-API. By modifying an URL parameter in Mailvelope, an attacker is able to sign (and encrypt) arbitrary messages with Mailvelope, assuming the private key password is cached. A second vulnerability allows an attacker to decrypt an arbitrary message when the GnuPG backend is used in Mailvelope.

Products
Not specified
Affected versions
Not specified
Fixed versions
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CVEs
CVE-2019-9149
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 10:48 UTC · Revision 1

Source evidence

CVE-2019-9149

core-osv · Original source

Published 9 Jul 2019, 21:15 UTC

Mailvelope prior to 3.3.0 allows private key operations without user interaction via its client-API. By modifying an URL parameter in Mailvelope, an attacker is able to sign (and encrypt) arbitrary messages with Mailvelope, assuming the private key password is cached. A second vulnerability allows an attacker to decrypt an arbitrary message when the GnuPG backend is used in Mailvelope.

osv:CVE-2019-9149
Complete source record
{
  "id": "c588333f6a1cdaad48aa8b81004e0ddf7e9febd9120d612b96ba96735b09fe18",
  "url": "https://osv.dev/vulnerability/CVE-2019-9149",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-9149",
    "summary": "Mailvelope prior to 3.3.0 allows private key operations without user interaction via its client-API. By modifying an URL parameter in Mailvelope, an attacker is able to sign (and encrypt) arbitrary messages with Mailvelope, assuming the private key password is cached. A second vulnerability allows an attacker to decrypt an arbitrary message when the GnuPG backend is used in Mailvelope.",
    "evidence": "osv:CVE-2019-9149",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-9149",
      "aliases": [
        "CVE-2019-9149"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mailvelope/mailvelope",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6bcc22bd2864add171571ad0832ac9ecb5f293b5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mailvelope:mailvelope:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.2.0",
            "v3.1.0",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v1.8.1",
            "v1.8.0",
            "v1.7.2",
            "v1.7.1",
            "v1.6.5",
            "v1.6.0",
            "v1.5.2",
            "v1.5.1",
            "v1.4.0",
            "v1.3.6",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.3",
            "v1.2.2",
            "v1.2.0",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.13.2",
            "v0.13.1",
            "v0.13.0",
            "v0.13.0b11",
            "v0.13.0b10",
            "v0.13.0b9",
            "v0.13.0b8",
            "v0.13.0b7",
            "v0.13.0b6",
            "v0.13.0b5",
            "v0.13.0b4",
            "v0.13.0b3",
            "v0.13.0b2",
            "v0.13.0b1",
            "v0.12.0b3",
            "v0.12.0b2",
            "v0.12.0b1",
            "v0.10.2",
            "v0.10.0",
            "v0.10.0b1",
            "v0.9.0",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.8.0b1",
            "v0.7.0",
            "v0.7.0b3",
            "v0.7.0b2",
            "v0.7.0b1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9149.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:44.556215067Z",
      "provider": "osv",
      "references": [
        "https://github.com/mailvelope/mailvelope/blob/master/Changelog.md#v330",
        "https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html",
        "https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.pdf?__blob=publicationFile&v=3"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-9149",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382845,
  "published_at": "2019-07-09T21:15:11.333+00:00"
}