Vulnerabilities CVE-2026-72645

CVE-2026-72645

Medium

Open

TLP:CLEAR

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

NVD CVE.org

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Description

Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding only read privileges on a single index can submit one small, specially crafted search request that causes an excessively large memory allocation, exhausting the JVM heap and terminating the affected node.

Details

CVSS Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

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