CVE-2026-47890: Spring Framework Server Sent Event stream corruption while rendering fragments
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 27, 2026 · Updated Oct 7, 2026
Affected packages
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 6.2.0, <= 6.2.19
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 7.0.0, <= 7.0.8
- Fixed in
- 7.0.9
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
org.springframework:spring-webmvc
- Ecosystem
- Maven
- Affected
- >= 6.2.0, <= 6.2.19
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webmvc
org.springframework:spring-webmvc
- Ecosystem
- Maven
- Affected
- >= 7.0.0, <= 7.0.8
- Fixed in
- 7.0.9
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webmvc
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
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
References
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology