CVE-2026-56148

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Recursión Incontrolada (CWE-674) en Elasticsearch puede conducir a una denegación de servicio a través de Asignación Excesiva (CAPEC-130). Un usuario autenticado puede enviar una consulta especialmente diseñada que causa un consumo excesivo de recursos mientras se procesa la solicitud, lo que puede dejar el nodo afectado no disponible.

Information

Published : 2026-07-01 17:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-56148

Mitre link : CVE-2026-56148

CVE.ORG link : CVE-2026-56148

JSON object : View

Products Affected

elastic

elasticsearch

CWE

CWE-674

Uncontrolled Recursion

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