CVE-2026-47892: Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.5.RELEASE - 5.2.25.RELEASE
Published Aug 27, 2026 · Updated Oct 7, 2026
Affected packages
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 5.2.5.RELEASE, <= 5.2.25.RELEASE
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 5.3.0, <= 5.3.49
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 6.0.0, <= 6.0.30
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
org.springframework:spring-webflux
- Ecosystem
- Maven
- Affected
- >= 6.1.0, <= 6.1.28
- Fixed in
- No patched version yet
- Check
mvn dependency:tree -Dincludes=org.springframework:spring-webflux
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
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.5.RELEASE - 5.2.25.RELEASE
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