FKIE_CVE-2026-26940

Vulnerability from fkie_nvd - Published: 2026-03-19 18:16 - Updated: 2026-03-23 13:35
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.
References
security@elastic.cohttps://discuss.elastic.co/t/kibana-8-19-13-9-2-7-9-3-2-security-update-esa-2026-20/385535Vendor Advisory
Impacted products
Vendor Product Version
elastic kibana *
elastic kibana *
elastic kibana *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4B2F9511-F4DE-43ED-BA09-5AADE77BAE20",
              "versionEndExcluding": "8.19.13",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            },
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value."
    },
    {
      "lang": "es",
      "value": "Validaci\u00f3n incorrecta de cantidad especificada en la entrada (CWE-1284) en el plugin de visualizaci\u00f3n Timelion en Kibana puede conducir a denegaci\u00f3n de servicio mediante asignaci\u00f3n excesiva (CAPEC-130). La vulnerabilidad permite a un usuario autenticado enviar una expresi\u00f3n Timelion especialmente dise\u00f1ada que sobrescribe propiedades internas de datos de series con un valor de cantidad excesivamente grande."
    }
  ],
  "id": "CVE-2026-26940",
  "lastModified": "2026-03-23T13:35:49.390",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
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        "impactScore": 3.6,
        "source": "security@elastic.co",
        "type": "Secondary"
      },
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          "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"
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        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-03-19T18:16:21.870",
  "references": [
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      "source": "security@elastic.co",
      "tags": [
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    }
  ],
  "sourceIdentifier": "security@elastic.co",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-1284"
        }
      ],
      "source": "security@elastic.co",
      "type": "Secondary"
    }
  ]
}


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