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CVE-2019-12291

Status: ModifiedHigh (7.5)—

HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Hashicorp — Consul

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-12291",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-06-06T17:29:00.353",
  "references": [
    {
      "url": "https://github.com/hashicorp/consul/issues/5888",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/hashicorp/consul/issues/5888",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured."
    },
    {
      "lang": "es",
      "value": "HashiCorp Consul 1.4.0 through 1.5.0 tiene accesos de control incorrectos, Las claves que no coinciden con una regla de ACL específica utilizada para la coincidencia de prefijos en una política se pueden eliminar con un token que usa esa política incluso con la configuración predeterminada de denegación configurada."
    }
  ],
  "lastModified": "2026-06-17T02:14:22.527",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DD705B1C-6F80-4BF8-BEE0-F785FA04EF53",
              "versionEndIncluding": "1.5.0",
              "versionStartIncluding": "1.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}