Spring Boot's Elasticsearch auto-configuration doesn't perform hostname verification when connecting to the Elasticsearch server.

MÉDIO 6.8CVE-2026-40970 · GHSA-c96x-rpm4-349p · Published 27/04/2026 · updated 26/10/2026

Em resumo

CVE-2026-40970 é uma vulnerabilidade MÉDIO (CVSS 6.8) que afeta org.springframework.boot:spring-boot-elasticsearch, spring boot (vmware).
Chance de exploração nos próximos 30 dias (EPSS): 0.14%, maior que 3.0% das vulnerabilidades.
Correção: atualize para 4.0.6 ou posterior.

Package	Affected versions	Patched versions
org.springframework.boot:spring-boot-elasticsearch Maven	`≥ 4.0.0, < 4.0.6`	`4.0.6`
spring boot vmware	`≥ 4.0.0, < 4.0.6`	`4.0.6`

Description

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.

NVD description

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.

References

nvd.nist.gov/vuln/detail/CVE-2026-40970 · ADVISORY
spring-projects/spring-boot · PACKAGE
spring-projects/spring-boot release v4.0.6 · WEB
spring.io/security/cve-2026-40970 · WEB

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