CVE-2026-47890: org.springframework/spring-webmvc: org.springframework/spring-webflux: Spring Framework: Stream corruption in Server-Sent Events (SSE) with view fragments

Severity: Critical

CVSS Score: 9.8

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