CVE-2026-102404

EUVD-2026-93926

06.10.2026, 20:17

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
elastic	CNA	6.5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
elastic	elasticsearch	8.0.0 ≤ 𝑥 ≤ 8.19.22	CNA
elastic	elasticsearch	9.0.0 ≤ 𝑥 ≤ 9.4.7	CNA
elastic	elasticsearch	9.5.0 ≤ 𝑥 ≤ 9.5.4	CNA

Common Weakness Enumeration

CWE-400 - Uncontrolled Resource Consumption
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References

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