CVE-2026-72656

MediumCVSS 6.5/10Last modified Sep 4, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-789

Affected software

No affected versions have been published.

Timeline

Published
Aug 13, 2026
Last modified
Sep 4, 2026
NVD status
Analyzed

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CVE-2026-72656: Medium severity, CVSS 6.5 | Vulnix