CVE-2025-11374

{
  "id": "CVE-2025-11374",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-28T21:15:37.300",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12."
    },
    {
      "lang": "es",
      "value": "El endpoint de clave/valor de Consul y Consul Enterprise ('Consul') es vulnerable a denegación de servicio (DoS) debido a una validación incorrecta del encabezado Content Length. Esta vulnerabilidad, CVE-2025-11374, está corregida en Consul Community Edition 1.22.0 y Consul Enterprise 1.22.0, 1.21.6, 1.20.8 y 1.18.12."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "HashiCorp",
          "product": "Consul",
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "repo": "https://github.com/hashicorp/consul",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.22.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "HashiCorp",
          "product": "Consul Enterprise",
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "repo": "https://github.com/hashicorp/consul",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.22.0",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "1.21.6",
                  "status": "unaffected"
                },
                {
                  "at": "1.20.8",
                  "status": "unaffected"
                },
                {
                  "at": "1.18.12",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-28T20:35:54.518844Z",
          "id": "CVE-2025-11374",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*",
              "versionEndExcluding": "1.18.12",
              "matchCriteriaId": "DE3AEC9A-D84F-4B7C-9B03-D3B8CE2CD319"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*",
              "versionEndExcluding": "1.22.0",
              "matchCriteriaId": "BD19A817-7366-4C2E-ADF9-35DC889EFE58"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "1.19.0",
              "versionEndExcluding": "1.20.8",
              "matchCriteriaId": "596686CD-4DE0-4C9A-83CC-F07B0D2014DB"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "1.21.0",
              "versionEndExcluding": "1.21.6",
              "matchCriteriaId": "8B688D66-7E0A-4969-9187-D5374EDF68B9"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discuss.hashicorp.com/t/hcsec-2025-29-consuls-kv-endpoint-is-vulnerable-to-denial-of-service/76724",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}