CVE-2026-41847 Security Details

CVE ID

CVE-2026-41847

CWE

CWE-284

NVD-CWE-noinfo

CVE 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.

Published

Jun 8, 2026

CVSS Score & Severity

5.3Medium

CVSS Vector

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

EPSS Score

0.034%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/springframework/web/reactive/function/server/RouterFunctionDsl.filter(Lkotlin/jvm/functions/Function2;)V

JVMVulnerable params: 0

Affected Ecosystems

affected

Source

National Vulnerability Database

References

spring.ioPROJECT