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CVE-2026-72656

Elasticsearch

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.

CVSS 6.5EPSS 0.29%Risk 0.67
View source
Published
2026-08-13 20:17:25
Affected versions
unknown
Type
Web application
Last modified
2026-08-28 15:32:26
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H