CVE-2026-63136 (GCVE-0-2026-63136)

Vulnerability from cvelistv5 – Published: 2026-07-21 20:20 – Updated: 2026-07-22 19:41
VLAI
Title
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
Summary
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Elastic Elasticsearch Affected: 8.0.0 , ≤ 8.19.14 (semver)
Affected: 9.3.0 , ≤ 9.3.3 (semver)
Affected: 9.0.0 , ≤ 9.2.8 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-63136",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-22T19:31:50.834030Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-22T19:41:00.574Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Elasticsearch",
          "vendor": "Elastic",
          "versions": [
            {
              "lessThanOrEqual": "8.19.14",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.3.3",
              "status": "affected",
              "version": "9.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.2.8",
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.\u003c/p\u003e"
            }
          ],
          "value": "Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-21T20:20:07.409Z",
        "orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
        "shortName": "elastic"
      },
      "references": [
        {
          "url": "https://discuss.elastic.co/t/elasticsearch-8-19-15-9-2-9-9-3-4-security-update-esa-2026-60/388559"
        }
      ],
      "source": {
        "discovery": "Elastic"
      },
      "title": "Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service",
      "x_generator": {
        "engine": "Elastic CVE Publisher 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
    "assignerShortName": "elastic",
    "cveId": "CVE-2026-63136",
    "datePublished": "2026-07-21T20:20:07.409Z",
    "dateReserved": "2026-07-15T18:23:57.165Z",
    "dateUpdated": "2026-07-22T19:41:00.574Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-63136",
      "date": "2026-07-22",
      "epss": "0.00235",
      "percentile": "0.14473"
    },
    "microsoft_vex": {
      "current_release_date": "2026-07-23T01:02:44.000Z",
      "cve": "CVE-2026-63136",
      "id": "msrc_CVE-2026-63136",
      "initial_release_date": "2026-07-23T01:02:44.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-63136.json",
      "version": "1"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-63136\",\"sourceIdentifier\":\"security@elastic.co\",\"published\":\"2026-07-21T21:16:52.850\",\"lastModified\":\"2026-07-22T20:37:38.603\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.\"}],\"affected\":[{\"source\":\"security@elastic.co\",\"affectedData\":[{\"vendor\":\"Elastic\",\"product\":\"Elasticsearch\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"8.0.0\",\"lessThanOrEqual\":\"8.19.14\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"9.3.0\",\"lessThanOrEqual\":\"9.3.3\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"9.0.0\",\"lessThanOrEqual\":\"9.2.8\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@elastic.co\",\"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\":\"2026-07-22T19:31:50.834030Z\",\"id\":\"CVE-2026-63136\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@elastic.co\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"references\":[{\"url\":\"https://discuss.elastic.co/t/elasticsearch-8-19-15-9-2-9-9-3-4-security-update-esa-2026-60/388559\",\"source\":\"security@elastic.co\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"affected\": [{\"defaultStatus\": \"unaffected\", \"product\": \"Elasticsearch\", \"vendor\": \"Elastic\", \"versions\": [{\"lessThanOrEqual\": \"8.19.14\", \"status\": \"affected\", \"version\": \"8.0.0\", \"versionType\": \"semver\"}, {\"lessThanOrEqual\": \"9.3.3\", \"status\": \"affected\", \"version\": \"9.3.0\", \"versionType\": \"semver\"}, {\"lessThanOrEqual\": \"9.2.8\", \"status\": \"affected\", \"version\": \"9.0.0\", \"versionType\": \"semver\"}]}], \"descriptions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eUncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.\u003c/p\u003e\"}], \"value\": \"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.\"}], \"impacts\": [{\"capecId\": \"CAPEC-130\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-130 Excessive Allocation\"}]}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseSeverity\": \"MEDIUM\", \"baseScore\": 6.5, \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"privilegesRequired\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"version\": \"3.1\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"orgId\": \"271b6943-45a9-4f3a-ab4e-976f3fa05b5a\", \"shortName\": \"elastic\", \"dateUpdated\": \"2026-07-21T20:20:07.409Z\"}, \"references\": [{\"url\": \"https://discuss.elastic.co/t/elasticsearch-8-19-15-9-2-9-9-3-4-security-update-esa-2026-60/388559\"}], \"source\": {\"discovery\": \"Elastic\"}, \"title\": \"Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service\", \"x_generator\": {\"engine\": \"Elastic CVE Publisher 0.0.1\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-63136\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-22T19:31:50.834030Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-22T19:31:51.566Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-63136\", \"assignerOrgId\": \"271b6943-45a9-4f3a-ab4e-976f3fa05b5a\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"elastic\", \"dateReserved\": \"2026-07-15T18:23:57.165Z\", \"datePublished\": \"2026-07-21T20:20:07.409Z\", \"dateUpdated\": \"2026-07-22T19:41:00.574Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.