GitHub Advisoryadvisory · Maven

GHSA-9qf2-26p9-2q2q Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints

CRITICAL Published 2026-08-27 Modified 2026-10-07 Official page ↗
Aliases
CVE-2026-47892
Ecosystem
Maven
Packages
org.springframework:spring-webflux
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-863
Reviewed
2026-10-07

Affected packages

• Maven org.springframework:spring-webflux: >= 5.2.5.RELEASE, <= 5.2.25.RELEASE (no fix yet) • Maven org.springframework:spring-webflux: >= 5.3.0, <= 5.3.49 (no fix yet) • Maven org.springframework:spring-webflux: >= 6.0.0, <= 6.0.30 (no fix yet) • Maven org.springframework:spring-webflux: >= 6.1.0, <= 6.1.28 (no fix yet) • Maven org.springframework:spring-webflux: >= 6.2.0, <= 6.2.19 (no fix yet) • Maven org.springframework:spring-webflux: >= 7.0.0, < 7.0.9 → fixed in 7.0.9

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

Related

Alias · CVE (1)

  • CVE-2026-47892 A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a… vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References