CVE-2026-102404

MediumCVSS 6.5/10Last modified Oct 13, 2026

Description

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory growth in the query processing engine, resulting in an out-of-memory condition that terminates the Elasticsearch node. The condition can be triggered repeatedly, including by queries embedded in shared resources, causing persistent cluster unavailability.

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-400

Affected software

Vendor	Product	Versions
Elastic	Elasticsearch	>= 8.0.0, <= 8.19.22; >= 9.0.0, <= 9.4.7; >= 9.5.0, <= 9.5.4

References

https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-185/390859Vendor Advisory

Timeline

Published: Oct 6, 2026
Last modified: Oct 13, 2026
NVD status: Analyzed

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