Spring Framework 5-7 WebFlux Header Predicate Bypass (CVE-2026-47892)
CVE-2026-47892 Published on August 27, 2026
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
Vulnerability Analysis
CVE-2026-47892 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-47892 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-47892
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Affected Versions
Spring Framework:- Version 7.0.0, <= 7.0.8 is affected.
- Version 6.2.0, <= 6.2.19 is affected.
- Version 6.1.0, <= 6.1.28 is affected.
- Version 6.0.0, <= 6.0.30 is affected.
- Version 5.3.0, <= 5.3.49 is affected.
- Version 5.2.5.RELEASE, <= 5.2.25.RELEASE is affected.