{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:elastic:metricbeat:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "8.0.0"
              },
              {
                "fixed": "8.19.13"
              },
              {
                "introduced": "9.0.0"
              },
              {
                "fixed": "9.2.5"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "2ab3a7334016f570e0bfc7e9a577a35a22e02df5"
            },
            {
              "fixed": "772e25e87cbdcaac9aca33e72af74e5ee8e1220a"
            },
            {
              "introduced": "42a721c925857c0d1f4160c977eb5f188e46d425"
            },
            {
              "fixed": "090edf6777335b72756841fc32203573a0cc1073"
            }
          ],
          "repo": "https://github.com/elastic/beats",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "elastic",
    "cwe_ids": [
      "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26931.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "8.0.0"
          },
          {
            "last_affected": "8.19.12"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Memory Allocation with Excessive Size Value (CWE-789) in the Prometheus remote_write HTTP handler in Metricbeat can lead Denial of Service via Excessive Allocation (CAPEC-130).",
  "id": "CVE-2026-26931",
  "modified": "2026-09-11T03:30:14.521989763Z",
  "published": "2026-03-19T17:05:57.514Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26931.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26931"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service"
}