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CVE-2026-41847

Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL

Published: Jun 9, 2026Updated: Jun 9, 2026 Sources: CVE List NVD
NVD MITRE
4.8CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-284

Affected Products

Spring Framework
Spring

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

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

Timeline

Published
Jun 9, 2026
Last Updated
Jun 9, 2026

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