CVE-2026-41847

MEDIUM

Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL

Title source: cna

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 (1)

Core 1

Core References

https://spring.io/security/cve-2026-41847

Scores

CVSS v3 4.8

EPSS 0.0016

EPSS Percentile 5.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (2)

Spring/Spring Framework 5.3.0 - 5.3.49

vmware/spring_framework 5.3.0 - 5.3.49

Published Jun 09, 2026

Tracked Since Jun 09, 2026