CVE-2026-40970
Medium · 5.0CVSS
5.0
EPSS
0.1%
Published
Apr 27, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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