BIT-elasticsearch-2026-72656

vendorUSosv

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service

view advisory published 2026-08-19Licence: per source

Memory Allocation with Excessive Size Value (CWE-789) in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user able to submit ES|QL queries could send a specially crafted query whose evaluation allocates an unbounded amount of heap memory, exhausting the available heap on the receiving node and causing the node to become unavailable.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-72656US——
Memory Allocation with Excessive Size Value (CWE-789) in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenti…
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