Daehyun Kang

UrlHandlerFilter in both Spring MVC and Spring WebFlux is susceptible to an open redirect when configured with very broadly matching patterns. An open redirect occurs when an application takes a user-provided input and uses it to redirect the user to an external site without sufficient validation.

Spring Data REST is susceptible to Spring Expression Language (SpEL) injection when processing JSON Patch requests using the `application/json-patch+json` content type. This occurs when a persistent entity exposes a Map-typed property, as the JSON Pointer path segment serving as the map key is embedded into a SpEL expression without proper sanitization or validation.