CVE-2026-40970

medium

Published 2026-04-27 · Modified 2026-05-06

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

6.8

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.8

Description

Spring Boot's Elasticsearch auto-configuration doesn't perform hostname verification when connecting to the Elasticsearch server.

Predictions

Exploit likelihood

67%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	org.springframework.boot:spring-boot-elasticsearch	`>=4.0.0,<4.0.6`	`4.0.6`
MAVEN	org.springframework.boot:spring-boot-elasticsearch	`>= 4.0.0, < 4.0.6`	`4.0.6`

Application impact

Vendor	Product	Versions	Fixed
vmware	spring_boot	`{"startIncluding":"4.0.0","endExcluding":"4.0.6"}`	`4.0.6`

References

CWEs

CWE-295

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.