An attacker on the same network as the remote application may be able to utilize a timing…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-208.
Summary
An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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; 3.5.0 to before 3.5.14; 3.4.0 to before 3.4.16; 3.3.0 to before 3.3.19; 2.7.0 to before 2.7.33 | 4.0.6, 3.5.14, 3.4.16, 3.3.19, 2.7.33 | Patch available | CNA |
| — | org.springframework.boot:spring-boot-devtools (Maven) | 4.0.0 to before 4.0.6 | 4.0.6 | Patch available | GHSA-56v8-86gj-66jp |
| — | org.springframework.boot:spring-boot-devtools (Maven) | 3.5.0 to before 3.5.14 | 3.5.14 | Patch available | GHSA-56v8-86gj-66jp |
| — | org.springframework.boot:spring-boot-devtools (Maven) | 3.4.0 – 3.4.15 | — | No fix listed | GHSA-56v8-86gj-66jp |
| — | org.springframework.boot:spring-boot-devtools (Maven) | 3.3.0 – 3.3.18 | — | No fix listed | GHSA-56v8-86gj-66jp |
| — | org.springframework.boot:spring-boot-devtools (Maven) | up to 2.7.32 | — | No fix listed | GHSA-56v8-86gj-66jp |
- Spring Boot VendorVMware Affected 4.0.0 to before 4.0.6; 3.5.0 to before 3.5.14; 3.4.0 to before 3.4.16; 3.3.0 to before 3.3.19; 2.7.0 to before 2.7.33 Fixed in 4.0.6, 3.5.14, 3.4.16, 3.3.19, 2.7.33 Patch available CNA
- org.springframework.boot:spring-boot-devtools (Maven) Vendor— Affected 4.0.0 to before 4.0.6 Fixed in 4.0.6 Patch available GHSA-56v8-86gj-66jp
- org.springframework.boot:spring-boot-devtools (Maven) Vendor— Affected 3.5.0 to before 3.5.14 Fixed in 3.5.14 Patch available GHSA-56v8-86gj-66jp
- org.springframework.boot:spring-boot-devtools (Maven) Vendor— Affected 3.4.0 – 3.4.15 Fixed in — No fix listed GHSA-56v8-86gj-66jp
- org.springframework.boot:spring-boot-devtools (Maven) Vendor— Affected 3.3.0 – 3.3.18 Fixed in — No fix listed GHSA-56v8-86gj-66jp
- org.springframework.boot:spring-boot-devtools (Maven) Vendor— Affected up to 2.7.32 Fixed in — No fix listed GHSA-56v8-86gj-66jp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:* | before 2.7.33; 3.3.0 to before 3.3.19; 3.4.0 to before 3.4.16; 3.5.0 to before 3.5.14; 4.0.0 to before 4.0.6 | Vulnerable | VMware |
- cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:* Versions before 2.7.33; 3.3.0 to before 3.3.19; 3.4.0 to before 3.4.16; 3.5.0 to before 3.5.14; 4.0.0 to before 4.0.6 Vulnerable ·VMware
Remediation
- Fix · CNA Spring Boot (Spring) Fixed in 4.0.6, 3.5.14, 3.4.16, 3.3.19, 2.7.33
- Fix · GHSA-56v8-86gj-66jp org.springframework.boot:spring-boot-devtools (Maven) Fixed in 4.0.6 Advisory →
- Fix · GHSA-56v8-86gj-66jp org.springframework.boot:spring-boot-devtools (Maven) Fixed in 3.5.14 Advisory →
Red Hat 3 advisories
- RHSA-2026:25089 Released 2026-06-10 · Red Hat rating ImportantHawtIO 4.4.0 for Red Hat build of Apache Camel 4 Release and security update.
- HawtIO HawtIO 4.4.0
- RHSA-2026:21772 Released 2026-05-28 · Red Hat rating ImportantRed Hat OpenShift Dev Spaces 3.28.0 Release.
- Red Hat OpenShift Dev Spaces 3.28 registry.redhat.io/devspaces/code-rhel9, registry.redhat.io/devspaces/dashboard-rhel9, registry.redhat.io/devspaces/openvsx-rhel9 +3
- RHSA-2026:17668 Released 2026-05-14 · Red Hat rating CriticalRed Hat Build of Apache Camel 4.18.1 for Spring Boot release.
- Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Spring Boot 2.7.33, 3.3.19 and 3 more versions
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2026-29625 Improper certificate validation in VMware Spring BootPriority MEDIUM 41
- TI-2026-29626 Values produced by ${random.value} are not suitable for use as secrets.Priority LOW 33
- TI-2026-29624 A local attacker on the same host as the application may be able to take control of the…Priority LOW 32
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Fuse 7 | Affected | No fix planned: Will not fix |
| Red Hat build of OptaPlanner 8 | Affected | No fix yet |
| HawtIO HawtIO 4.4.0 | Fixed | RHSA-2026:25089 |
| Red Hat OpenShift Dev Spaces 3.28 | Fixed | RHSA-2026:21772 |
| Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14 | Fixed | RHSA-2026:17668 |
Not affected: 11 products
- Red Hat AMQ Broker 7
- Red Hat AMQ Clients
- Red Hat Data Grid 8
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Enterprise Application Platform 7
- Red Hat JBoss Enterprise Application Platform 8
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat OpenShift Dev Spaces 3.28
- Red Hat Process Automation 7
- Red Hat Single Sign-On 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40972
- 2026-10-03 Alias added: GHSA-56v8-86gj-66jp
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-2026-40972 · CVE Program
- CVE-2026-40972 · NVD
- FIRST EPSS
- GHSA-56v8-86gj-66jp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-40972 · 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