Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Exponential Data Expansion (CAPEC-197). An authenticated user may submit a specially crafted query to the ES|QL engine that causes exponential CPU consumption during query evaluation. Because the resource exhaustion persists beyond query completion, repeated requests can fully exhaust the available query worker resources, rendering ES|QL queries unavailable until the node is restarted.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Elastic Elasticsearch | — | Upgrade Elastic Elasticsearch to the latest version | Aug 4, 2026 | Jul 22, 2026 |
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