Self Routing guard bypassed via function composition
Priority LOW 28CWE-674Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-674.
Summary
Under infinite recursion in the routing layer, request-handling can cause OOM error. Affected Spring Products and Versions: Spring Cloud Function 3.2.x: versions prior to 3.2.16 Spring Cloud Function 4.1.x: versions prior to 4.1.10 Spring Cloud Function 4.2.x: versions prior to 4.2.6 Spring Cloud Function 4.3.x: versions prior to 4.3.3 Spring Cloud Function 5.0.x: versions prior to 5.0.2 Older, unsupported versions are also affected.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00211 11th percentileScored 2026-11-07
Fix Partial Spring Cloud Function (Spring): 3.2.16, 4.1.10, 4.2.6 +2org.springframework.cloud:spring-cloud-function-context (Maven): 4.3.3, 5.0.2Red Hat: 1 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 Cloud Function | 3.2.0 to before 3.2.16; 4.1.0 to before 4.1.10; 4.2.0 to before 4.2.6; 4.3.0 to before 4.3.3; 5.0.0 to before 5.0.2 | 3.2.16, 4.1.10, 4.2.6, 4.3.3, 5.0.2 | Patch available | CNA |
| — | org.springframework.cloud:spring-cloud-function-context (Maven) | 4.3.0 to before 4.3.3 | 4.3.3 | Patch available | GHSA-x9c7-5h6g-hq8q |
| — | org.springframework.cloud:spring-cloud-function-context (Maven) | 5.0.0 to before 5.0.2 | 5.0.2 | Patch available | GHSA-x9c7-5h6g-hq8q |
| — | org.springframework.cloud:spring-cloud-function-context (Maven) | 3.2.10 – 3.2.15 | — | No fix listed | GHSA-x9c7-5h6g-hq8q |
| — | org.springframework.cloud:spring-cloud-function-context (Maven) | 4.1.0 – 4.1.9 | — | No fix listed | GHSA-x9c7-5h6g-hq8q |
| — | org.springframework.cloud:spring-cloud-function-context (Maven) | 4.2.0 – 4.2.5 | — | No fix listed | GHSA-x9c7-5h6g-hq8q |
- Spring Cloud Function VendorVMware Affected 3.2.0 to before 3.2.16; 4.1.0 to before 4.1.10; 4.2.0 to before 4.2.6; 4.3.0 to before 4.3.3; 5.0.0 to before 5.0.2 Fixed in 3.2.16, 4.1.10, 4.2.6, 4.3.3, 5.0.2 Patch available CNA
- org.springframework.cloud:spring-cloud-function-context (Maven) Vendor— Affected 4.3.0 to before 4.3.3 Fixed in 4.3.3 Patch available GHSA-x9c7-5h6g-hq8q
- org.springframework.cloud:spring-cloud-function-context (Maven) Vendor— Affected 5.0.0 to before 5.0.2 Fixed in 5.0.2 Patch available GHSA-x9c7-5h6g-hq8q
- org.springframework.cloud:spring-cloud-function-context (Maven) Vendor— Affected 3.2.10 – 3.2.15 Fixed in — No fix listed GHSA-x9c7-5h6g-hq8q
- org.springframework.cloud:spring-cloud-function-context (Maven) Vendor— Affected 4.1.0 – 4.1.9 Fixed in — No fix listed GHSA-x9c7-5h6g-hq8q
- org.springframework.cloud:spring-cloud-function-context (Maven) Vendor— Affected 4.2.0 – 4.2.5 Fixed in — No fix listed GHSA-x9c7-5h6g-hq8q
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:spring_cloud_function:*:*:*:*:*:*:*:* | 3.2.0 to before 3.2.16; 4.1.0 to before 4.1.10; 4.2.0 to before 4.2.6; 4.3.0 to before 4.3.3; 5.0.0 to before 5.0.2 | Vulnerable | VMware |
- cpe:2.3:a:vmware:spring_cloud_function:*:*:*:*:*:*:*:* Versions 3.2.0 to before 3.2.16; 4.1.0 to before 4.1.10; 4.2.0 to before 4.2.6; 4.3.0 to before 4.3.3; 5.0.0 to before 5.0.2 Vulnerable ·VMware
Remediation
- Fix · CNA Spring Cloud Function (Spring) Fixed in 3.2.16, 4.1.10, 4.2.6, 4.3.3, 5.0.2
- Fix · GHSA-x9c7-5h6g-hq8q org.springframework.cloud:spring-cloud-function-context (Maven) Fixed in 4.3.3 Advisory →
- Fix · GHSA-x9c7-5h6g-hq8q org.springframework.cloud:spring-cloud-function-context (Maven) Fixed in 5.0.2 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Spring Cloud Function 3.2.16, 4.1.10 and 3 more versions
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-29641 Unbounded cache for function definitionsPriority LOW 28
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40989
- 2026-10-03 Alias added: GHSA-x9c7-5h6g-hq8q
References
More VMware Spring Cloud Function vulnerabilities
- TI-2022-07140 Code injection in Spring Cloud Function KEVCVSS 3.1CRITICAL 9.8
- TI-2022-07155 Resource allocation without limits in Spring Cloud Function CVSS 3.1HIGH 7.5
- TI-2026-29641 Unbounded cache for function definitions CVSS 3.1MEDIUM 6.5
- TI-2026-42423 Server-side request forgery in VMware Spring Cloud Function CVSS 3.1MEDIUM 5.5
- TI-2026-42434 Sensitive information in log files in VMware Spring Cloud Stream CVSS 3.1MEDIUM 4.9
- TI-2026-42433 Sensitive information in log files in VMware Spring Cloud Function CVSS 3.1MEDIUM 4.9
Sources
- CVE-2026-40989 · CVE Program
- CVE-2026-40989 · NVD
- FIRST EPSS
- GHSA-x9c7-5h6g-hq8q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-40989 · 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