Spring Framework DoS with Multipart Temp Files in WebFlux
Priority LOW 29CWE-400Published · 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: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
A WebFlux server application that processes multipart requests creates temp files for parts larger than 10 K. Under some circumstances, temp files may remain not deleted after the request is fully processed. This allows an attacker to consume available disk space. Older, unsupported versions are also affected.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00344 28th percentileScored 2026-11-07
Fix Partial Spring Framework (VMware): 7.0.7, 6.2.18, 6.1.27 +1org.springframework:spring-webflux (Maven): 7.0.7, 6.2.18Red Hat: 5 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 Framework | 7.0.0 to before 7.0.7; 6.2.0 to before 6.2.18; 6.1.0 to before 6.1.27; 5.3.0 to before 5.3.48 | 7.0.7, 6.2.18, 6.1.27, 5.3.48 | Patch available | CNA |
| — | org.springframework:spring-webflux (Maven) | 7.0.0 to before 7.0.7 | 7.0.7 | Patch available | GHSA-5843-p793-ghmm |
| — | org.springframework:spring-webflux (Maven) | 6.2.0 to before 6.2.18 | 6.2.18 | Patch available | GHSA-5843-p793-ghmm |
| — | org.springframework:spring-webflux (Maven) | 6.1.0 – 6.1.26 | — | No fix listed | GHSA-5843-p793-ghmm |
| — | org.springframework:spring-webflux (Maven) | up to 5.3.47 | — | No fix listed | GHSA-5843-p793-ghmm |
- Spring Framework VendorVMware Affected 7.0.0 to before 7.0.7; 6.2.0 to before 6.2.18; 6.1.0 to before 6.1.27; 5.3.0 to before 5.3.48 Fixed in 7.0.7, 6.2.18, 6.1.27, 5.3.48 Patch available CNA
- org.springframework:spring-webflux (Maven) Vendor— Affected 7.0.0 to before 7.0.7 Fixed in 7.0.7 Patch available GHSA-5843-p793-ghmm
- org.springframework:spring-webflux (Maven) Vendor— Affected 6.2.0 to before 6.2.18 Fixed in 6.2.18 Patch available GHSA-5843-p793-ghmm
- org.springframework:spring-webflux (Maven) Vendor— Affected 6.1.0 – 6.1.26 Fixed in — No fix listed GHSA-5843-p793-ghmm
- org.springframework:spring-webflux (Maven) Vendor— Affected up to 5.3.47 Fixed in — No fix listed GHSA-5843-p793-ghmm
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* | before 5.3.48; 6.1.0 to before 6.1.27; 6.2.0 to before 6.2.18; 7.0.0 to before 7.0.7 | Vulnerable | VMware |
- cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* Versions before 5.3.48; 6.1.0 to before 6.1.27; 6.2.0 to before 6.2.18; 7.0.0 to before 7.0.7 Vulnerable ·VMware
Remediation
- Fix · CNA Spring Framework (VMware) Fixed in 7.0.7, 6.2.18, 6.1.27, 5.3.48
- Fix · GHSA-5843-p793-ghmm org.springframework:spring-webflux (Maven) Fixed in 7.0.7 Advisory →
- Fix · GHSA-5843-p793-ghmm org.springframework:spring-webflux (Maven) Fixed in 6.2.18 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
VMware Spring Framework 5.3.48, 6.1.27 and 2 more versions
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-18269 CVE-2026-22745 : Denial of service in static resource handling on Windows platformsPriority LOW 30
- TI-2026-18265 Static resource cache poisoning in Spring MVC and WebFluxPriority LOW 15
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: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix planned: Out of support scope |
| 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 build of Apache Camel - HawtIO 4 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22740
- 2026-10-03 Alias added: GHSA-5843-p793-ghmm
References
More VMware Spring Framework vulnerabilities
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
- TI-2018-01175 Code injection in Spring Framework CVSS 3.1CRITICAL 9.8
- TI-2020-04444 RFD Attack via "Content-Disposition" Header Sourced from Request Input by Spring MVC or Spring WebFlux Application CVSS 3.1HIGH 7.5
- TI-2018-01180 Code injection in Spring Framework CVSS 3.1CRITICAL 9.8
- TI-2016-09283 Pivotal Spring Framework through 5.3.16 suffers from a potential remote code execution… CVSS 3.1CRITICAL 9.8
- TI-2014-00050 The Jaxb2RootElementHttpMessageConverter in Spring MVC in Spring Framework before 3.2.8… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2026-22740 · CVE Program
- CVE-2026-22740 · NVD
- FIRST EPSS
- GHSA-5843-p793-ghmm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-22740 · 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