Security advisory

{
  "id": "8fd3fa0cd7634f0def5e86de648ff4e2be7e97bafd3b5b74cfe30668e98ec33f",
  "url": "https://osv.dev/vulnerability/CVE-2018-19653",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19653",
    "summary": "HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.",
    "evidence": "osv:CVE-2018-19653",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-19653",
      "aliases": [
        "CVE-2018-19653",
        "GHSA-4qvx-qq5w-695p",
        "GO-2023-1850"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hashicorp/consul",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9fb235a98d8e88f7857b21bb2dd3efc428c01427"
                },
                {
                  "last_affected": "0bddfa23a2ebe3c0773d917fc104f53d74f7a5ec"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.5.1"
                      },
                      {
                        "last_affected": "1.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.3",
            "v1.1.0",
            "v1.0.7",
            "v0.9.3",
            "v1.4.0",
            "v1.4.0-rc1",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.0.6",
            "v1.0.5",
            "v1.0.4",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.1-rc1",
            "v1.0.0",
            "v1.0.0-beta2",
            "v1.0.0-beta1",
            "v0.9.3-rc2",
            "v0.9.3-rc1",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.9.0-rc1",
            "v0.8.5",
            "v0.8.4",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0",
            "v0.8.0-rc1",
            "v0.7.4",
            "v0.7.3",
            "v0.7.2",
            "v0.7.2-rc1",
            "v0.7.1",
            "v0.7.0",
            "v0.7.0-rc2",
            "v0.7.0-rc1",
            "v0.6.4",
            "v0.6.4-rc3",
            "v0.6.3",
            "v0.6.1",
            "v0.6.0",
            "v0.6.0-rc2",
            "v0.6.0-rc1",
            "v0.5.2",
            "v0.5.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19653.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:27.364562908Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/forum/#%21topic/consul-tool/7TCw06oio0I",
        "https://github.com/hashicorp/consul/pull/5069"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-19653",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381726,
  "published_at": "2018-12-09T19:29:00.25+00:00"
}