CVE-2026-40970

medium

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

https://spring.io/security/cve-2026-40970

Details

Source: Mitre, NVD

Published: 2026-04-27

Updated: 2026-04-27

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:A/AC:H/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5

Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L