Bug 2524846 (CVE-2026-47892)

Summary: CVE-2026-47892 org.springframework/spring-webflux: Spring Framework: Header Predicate Bypass in WebFlux Functional Endpoints
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abrianik, aschwart, aszczucz, boliveir, drichtar, ggrzybek, gmalinko, gtanzill, hfuruich, janstey, jbuscemi, jraez, mposolda, myoshida, parichar, pdelbell, pjindal, rhel-process-autobot, rmartinc, rstepani, sdawley, ssilvert, sthorger, tasato, vmuzikar, watson-tool-maintainers, yozone
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in Spring Framework. This vulnerability allows a header predicate bypass to occur in a pre-flight request within a WebFlux application that uses functional endpoints and is deployed with DispatcherServlet. This bypass could potentially lead to unexpected behavior or security policy circumvention.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-27 06:22:13 UTC 
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