Answer in brief
CVE-2026-47890 records a Critical severity (CVSS 9.8) vulnerability in Spring Framework Server Sent Event stream corruption while rendering fragments. The current sources do not mark it as known exploited. The current feed maps Spring/Spring Framework (generic), Spring/Spring Framework (generic), org.springframework:spring-webflux (maven), org.springframework:spring-webflux (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Spring/Spring Framework (generic), Spring/Spring Framework (generic), org.springframework:spring-webflux (maven), org.springframework:spring-webflux (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Spring/Spring Frameworkgeneric | 7.0.0 || 6.2.0 | Not reported |
| Spring/Spring Frameworkgeneric | >=7.0.0 <=7.0.8 || >=6.2.0 <=6.2.19 | Not reported |
| org.springframework:spring-webfluxmaven | >=6.2.0 | Not reported |
| org.springframework:spring-webfluxmaven | >=7.0.0 <7.0.9 | 7.0.9 |
| org.springframework:spring-webfluxmaven | >=6.2.0,<=6.2.19 | Not reported |
| org.springframework:spring-webfluxmaven | >=7.0.0,<=7.0.8 | 7.0.9 |
| org.springframework:spring-webmvcmaven | >=6.2.0 | Not reported |
| org.springframework:spring-webmvcmaven | >=7.0.0 <7.0.9 | 7.0.9 |
| org.springframework:spring-webmvcmaven | >=6.2.0,<=6.2.19 | Not reported |
| org.springframework:spring-webmvcmaven | >=7.0.0,<=7.0.8 | 7.0.9 |
Published upstream
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 27, 2026
Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE) with view fragments. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19
Quoted source text, attributed separately from HOL analysis.