Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL

MEDIO 5.3CVE-2026-41847 · GHSA-vqgp-pf68-6947 · Published 09/06/2026 · updated 23/07/2026

En resumen

CVE-2026-41847 es una vulnerabilidad MEDIO (CVSS 5.3) que afecta a org.springframework:spring-webflux, spring framework (vmware).
Probabilidad de explotación en los próximos 30 días (EPSS): 0.17%, mayor que el 5.9% de las vulnerabilidades.
Solución: actualizar a 5.3.49 o posterior.

Package	Affected versions	Patched versions
org.springframework:spring-webflux Maven	`≤ 5.3.39`	No fix yet
spring framework vmware	`≥ 5.3.0, < 5.3.49`	`5.3.49`

Description

Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL.

Affected versions: Spring Framework 5.3.0 through 5.3.48.

NVD description

Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48.

References

nvd.nist.gov/vuln/detail/CVE-2026-41847 · ADVISORY
spring-projects/spring-framework · PACKAGE
spring.io/security/cve-2026-41847 · WEB

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Package

Affected versions

Patched versions

org.springframework:spring-webflux

Maven

≤ 5.3.39

No fix yet

spring framework

vmware

≥ 5.3.0, < 5.3.49

5.3.49

Description

Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL.

Affected versions: Spring Framework 5.3.0 through 5.3.48.

NVD description

Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48.

Más vulnerabilidades de org.springframework:spring-webflux

Ver todo →