CVE-2026-72656
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Aug 13, 2026
Vendor
unknown
Description
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.