CVE-2026-40970 MEDIUM

CVE-2026-40970

Vendor Spring
Product Spring Boot
Weakness CWE-295
Published April 27, 2026
Last update April 27, 2026
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 27, 2026 CVE published
April 27, 2026 Record updated