CVE-2026-40970CWE-295

When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the…

Medium · published April 27, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
10.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00208 · 10.4th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2026-04-27T19:09Z
EPSS history
Timeline
  • 27 APR 19:09Z
    When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the…
    cvelistv5