4.8
Medium
CVE-2026-41847 Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Spring Framework 5.3 | 5.3.0 → < 5.3.49 | 5.3.49 |
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