GitHub Advisoryadvisory · Maven

GHSA-j9f9-w8pj-32f8 Spring Framework Server Sent Event stream corruption while rendering fragments

CRITICAL Published 2026-08-27 Modified 2026-10-07 Official page ↗
Aliases
CVE-2026-47890
Ecosystem
Maven
Packages
org.springframework:spring-webflux, org.springframework:spring-webmvc
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-93
Reviewed
2026-10-07

Affected packages

• Maven org.springframework:spring-webflux: >= 6.2.0, <= 6.2.19 (no fix yet) • Maven org.springframework:spring-webflux: >= 7.0.0, < 7.0.9 → fixed in 7.0.9 • Maven org.springframework:spring-webmvc: >= 6.2.0, <= 6.2.19 (no fix yet) • Maven org.springframework:spring-webmvc: >= 7.0.0, < 7.0.9 → fixed in 7.0.9

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

Related

Alias · CVE (1)

  • CVE-2026-47890 Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE) with view fragments. vulnerability

Weakness · CWE (1)

  • CWE-93 Improper Neutralization of CRLF Sequences weakness

References