GHSA-48rw-j489-928m Signature wrapping vulnerability in Spring Security

• Maven org.springframework.security:spring-security-core: >= 5.2.0, < 5.2.4 → fixed in 5.2.4 • Maven org.springframework.security:spring-security-core: >= 5.3.0, < 5.3.2 → fixed in 5.3.2

Spring Security versions 5.2.x prior to 5.2.4 and 5.3.x prior to 5.3.2 contain a signature wrapping vulnerability during SAML response validation. When using the spring-security-saml2-service-provider component, a malicious user can carefully modify an otherwise valid SAML response and append an arbitrary assertion that Spring Security will accept as valid.