Medium, CVSS 5.0MavenPublished
Spring Boot's Elasticsearch auto-configuration doesn't perform hostname verification when connecting to the Elasticsearch server.
CVE-2026-40970 · GHSA-c96x-rpm4-349p
- Affected
- Maven org.springframework.boot:spring-boot-elasticsearch >= 4.0.0, < 4.0.6
- Fixed in
- 4.0.6· Vendor fix available
- Issue
- 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.
Recommended action: Upgrade to 4.0.6 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.