CVE-2026-47892 Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
Attackers can bypass header predicates in Spring WebFlux functional endpoints during pre-flight requests, potentially circumventing security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47892?
CVE-2026-47892 is a critical vulnerability in Vmware Spring Framework, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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
Weakness: CWE-863
Which versions are affected by CVE-2026-47892?
12 open source packages ship an affected version, including org.springframework:spring-webflux. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework:spring-webflux Maven | From 5.2.5.RELEASE to 5.2.25.RELEASE | None |
org.springframework:spring-webflux Maven | From 5.2.5.RELEASE to 5.2.25.RELEASE | None |
org.springframework:spring-webflux Maven | From 5.3.0 to 5.3.49 | None |
org.springframework:spring-webflux Maven | From 5.3.0 to 5.3.49 | None |
org.springframework:spring-webflux Maven | From 6.0.0 to 6.0.30 | None |
org.springframework:spring-webflux Maven | From 6.0.0 to 6.0.30 | None |
6 more packages
org.springframework:spring-webflux Maven | From 6.1.0 to 6.1.28 | None |
org.springframework:spring-webflux Maven | From 6.1.0 to 6.1.28 | None |
org.springframework:spring-webflux Maven | From 6.2.0 to 6.2.19 | None |
org.springframework:spring-webflux Maven | From 6.2.0 to 6.2.19 | None |
org.springframework:spring-webflux Maven | From 7.0.0 | 7.0.9 |
org.springframework:spring-webflux Maven | From 7.0.0 | 7.0.9 |
Products include Vmware Spring Framework.
How do I fix CVE-2026-47892?
Upgrade org.springframework:spring-webflux to 7.0.9 or later.
Is CVE-2026-47892 being exploited?
There is no known exploitation of CVE-2026-47892 in the wild and no public exploit code.
Other vulnerabilities in Vmware Spring Framework
- CVE-2026-47884 Spring Framework Improper Path Limitation in XsltView
- CVE-2026-47890 Spring Framework Server Sent Event stream corruption while rendering fragments
- CVE-2026-47891 Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder
- CVE-2026-59313 Server Sent Event stream corruption in Spring MVC functional web framework
- CVE-2016-1000027 Pivotal Spring Framework contains unsafe Java deserialization methods
Sources
Also known as CLEANSTART-2026-CI58129, CLEANSTART-2026-LT41646, CLEANSTART-2026-WK76356, CLEANSTART-2026-YE65839, DEBIAN-CVE-2026-47892, ECHO-145e-f4d1-a3a6 and 3 more.