CVE-2026-40970

When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the Elasticsearch server. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.4

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://spring.io/security/cve-2026-40970	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Cuando se configura para usar un paquete SSL, la auto-configuración de Elasticsearch de Spring Boot no realiza verificación de nombre de host al conectarse al servidor de Elasticsearch. Afectado: Spring Boot 4.0.0-4.0.5; actualice a 4.0.6 o posterior según el aviso del proveedor.

Information

Published : 2026-04-27 19:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-40970

Mitre link : CVE-2026-40970

CVE.ORG link : CVE-2026-40970

JSON object : View

Products Affected

vmware

spring_boot

CWE

CWE-295

Improper Certificate Validation

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