GHSA-c2cp-3xj9-97w9 Denial of service in Spring Security OAuth2

• Maven org.springframework.security.oauth:spring-security-oauth2: >= 2.5.0.RELEASE, < 2.5.2.RELEASE → fixed in 2.5.2.RELEASE • Maven org.springframework.security.oauth:spring-security-oauth2: >= 2.4.0.RELEASE, < 2.4.2.RELEASE → fixed in 2.4.2.RELEASE

Spring Security OAuth versions 2.5.x prior to 2.5.2 and older unsupported versions are susceptible to a Denial-of-Service (DoS) attack via the initiation of the Authorization Request in an OAuth 2.0 Client application. A malicious user or attacker can send multiple requests initiating the Authorization Request for the Authorization Code Grant, which has the potential of exhausting system resources using a single session. This vulnerability exposes OAuth 2.0 Client applications only.