{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.18.0"
              },
              {
                "fixed": "2.0.2"
              }
            ],
            "source": "DESCRIPTION"
          },
          "events": [
            {
              "introduced": "349cec176db1a6067952c1708d384e56de4eb9e1"
            },
            {
              "fixed": "ca5bc12bf2f9a3b10d4345aaa8050b0d3b523664"
            }
          ],
          "repo": "https://github.com/hashicorp/consul",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "HashiCorp",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19012.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.18.0"
          },
          {
            "fixed": "2.0.3"
          },
          {
            "introduced": "1.18.0"
          },
          {
            "fixed": "2.0.3"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.",
  "id": "CVE-2026-19012",
  "modified": "2026-08-12T03:51:27.358194020Z",
  "published": "2026-08-07T19:18:59.119Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19012.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19012"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hashicorp/consul"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path"
}