Improper certificate validation in VMware Spring Boot
Priority LOW 29CWE-295Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 15 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-295.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00136 3rd percentileScored 2026-11-07
Fix Partial Spring Boot (Spring): 4.0.6org.springframework.boot:spring-boot-elasticsearch (Maven): 4.0.6Red Hat: 15 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| VMware | Spring Boot | 4.0.0 to before 4.0.6 | 4.0.6 | Patch available | CNA |
| — | org.springframework.boot:spring-boot-elasticsearch (Maven) | 4.0.0 to before 4.0.6 | 4.0.6 | Patch available | GHSA-c96x-rpm4-349p |
- Spring Boot VendorVMware Affected 4.0.0 to before 4.0.6 Fixed in 4.0.6 Patch available CNA
- org.springframework.boot:spring-boot-elasticsearch (Maven) Vendor— Affected 4.0.0 to before 4.0.6 Fixed in 4.0.6 Patch available GHSA-c96x-rpm4-349p
Remediation
- Fix · CNA Spring Boot (Spring) Fixed in 4.0.6
- Fix · GHSA-c96x-rpm4-349p org.springframework.boot:spring-boot-elasticsearch (Maven) Fixed in 4.0.6 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Spring Boot 4.0.6
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-29627 Missing authorization in VMware Spring BootPriority MEDIUM 48
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat AMQ Broker 7 | Affected | No fix yet: Fix deferred |
| Red Hat AMQ Clients | Affected | No fix yet: Fix deferred |
| Red Hat Data Grid 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Out of support scope |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Dev Spaces | Affected | No fix yet: Fix deferred |
| Red Hat Process Automation 7 | Affected | No fix yet: Fix deferred |
| Red Hat Single Sign-On 7 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of Apache Camel for Spring Boot 4 | Affected | No fix yet: Fix deferred |
| Red Hat build of OptaPlanner 8 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40970
- 2026-10-03 Alias added: GHSA-c96x-rpm4-349p
References
More VMware Spring Boot vulnerabilities
- TI-2017-05637 Improper input validation in Pivotal Spring Data REST and Spring Boot CVSS 3.0CRITICAL 9.8
- TI-2023-07292 In Spring Boot versions 3.0.0 - 3.0.5, 2.7.0 - 2.7.10, and older unsupported versions, an… CVSS 3.1CRITICAL 9.8
- TI-2026-29627 Missing authorization in VMware Spring Boot CVSS 3.1CRITICAL 9.1
- TI-2021-08570 Element Plug-in for vCenter Server incorporates SpringBoot Framework. CVSS 3.1CRITICAL 9.8
- TI-2026-18258 Authentication Bypass under Actuator CloudFoundry endpoints CVSS 3.1HIGH 8.2
- TI-2026-18256 Authentication Bypass under Actuator Health groups paths CVSS 3.1HIGH 8.2
Sources
- CVE-2026-40970 · CVE Program
- CVE-2026-40970 · NVD
- FIRST EPSS
- GHSA-c96x-rpm4-349p · GitHub Advisory Database · CC BY 4.0
- CVE-2026-40970 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences