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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.springframework.security:spring-security-core(Maven) | 5.2.0 | 5.2.4 | N/A |
| org.springframework.security:spring-security-core(Maven) | 5.3.0 | 5.3.2 | N/A |
CVSS Metrics
