CVE-2026-40970 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

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References

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

History

Mon, 27 Apr 2026 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Mon, 27 Apr 2026 19:15:00 +0000

Type	Values Removed	Values Added
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.
Weaknesses		CWE-295
References		https://spring.io/security/cve-2026-40970
Metrics		cvssV3_1 `{'score': 5, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}`

MITRE

Status: PUBLISHED

Assigner: vmware

Published: 2026-04-27T19:09:58.835Z

Updated: 2026-04-27T19:30:55.167Z

Reserved: 2026-04-16T02:18:56.133Z

Link: CVE-2026-40970

Vulnrichment

Updated: 2026-04-27T19:30:49.787Z

NVD

Status : Awaiting Analysis

Published: 2026-04-27T19:16:52.967

Modified: 2026-04-27T19:26:32.820

Link: CVE-2026-40970

Redhat

No data.

OpenCVE Enrichment

No data.

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