Vmware Spring Boot up to 4.0.5 Elasticsearch Auto-configuration certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Vmware Spring Boot up to 4.0.5 and classified as critical. This affects an unknown function of the component Elasticsearch Auto-configuration. The manipulation leads to certificate validation. This vulnerability is listed as CVE-2026-40970. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Vmware Spring Boot up to 4.0.5. It has been rated as problematic. This issue affects an unknown part of the component Elasticsearch Auto-configuration. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE 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 advisory is shared at spring.io. The identification of this vulnerability is CVE-2026-40970 since 04/16/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/03/2026). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

Upgrading to version 4.0.6 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1263). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Red Hat Enterprise Linux
  • VMware Tanzu Spring Boot
  • HCL Commerce
  • Red Hat OpenShift

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔒

CNA Base Score: 5.0
CNA Vector (vmware): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Spring Boot 4.0.6

Timelineinfo

04/16/2026 CVE reserved
04/27/2026 +11 days Advisory disclosed
04/27/2026 +0 days VulDB entry created
06/03/2026 +37 days VulDB entry last update

Sourcesinfo

Vendor: vmware.com

Advisory: spring.io
Status: Confirmed

CVE: CVE-2026-40970 (🔒)
GCVE (CVE): GCVE-0-2026-40970
GCVE (VulDB): GCVE-100-359873
CERT Bund: WID-SEC-2026-1263 - VMware Tanzu Spring Boot: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 04/27/2026 23:42
Updated: 06/03/2026 08:56
Changes: 04/27/2026 23:42 (64), 05/17/2026 10:10 (11), 06/03/2026 08:56 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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