CVE-2026-47890 Security Details

CVE ID

CVE-2026-47890

CWE

CWE-93

CVE Description

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

Published

Aug 20, 2026

CVSS Score & Severity

2.3Low

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS Score

0.564%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/springframework/web/reactive/result/view/ViewResolutionResultHandler$SseStreamHandler.format(Lreactor/core/publisher/Flux;Lorg/springframework/web/reactive/result/view/Fragment;Ljava/lang/Object;Lorg/springframework/web/server/ServerWebExchange;)Lreactor/core/publisher/Flux;

JVMVulnerable params: 0

org/springframework/web/servlet/mvc/method/annotation/ResponseBodyEmitterReturnValueHandler$FragmentHttpServletResponse.getFragmentContent()[B

JVM

Affected Ecosystems

affected

Source

National Vulnerability Database

References

spring.ioPROJECT