CVE-2026-49090

{
  "id": "CVE-2026-49090",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-01T18:16:33.540",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests."
    },
    {
      "lang": "es",
      "value": "Consumo Incontrolado de Recursos (CWE-400) en Elasticsearch puede llevar a una denegación de servicio a través de Asignación Excesiva (CAPEC-130). Un usuario autenticado puede enviar una solicitud masiva especialmente diseñada que causa un consumo elevado y sostenido de CPU, lo que puede dejar al nodo afectado incapaz de procesar solicitudes."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Elastic",
          "product": "Elasticsearch",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8.0.0",
              "lessThanOrEqual": "8.14.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "7.0.0",
              "lessThanOrEqual": "7.17.23",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "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": "2026-07-01T17:56:23.912486Z",
          "id": "CVE-2026-49090",
          "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-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndExcluding": "7.17.24",
              "matchCriteriaId": "3E719DF2-6A28-43F9-A8C6-4882684C5AC1"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.0.0",
              "versionEndExcluding": "8.15.0",
              "matchCriteriaId": "A1A70215-D9F0-4CD0-B255-B0FF78B03881"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}