CVE-2026-41694 SAML Payloads Decrypted Without Valid Signature

Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle. Affected versions: Spring Security 5.7.0...

Information Exposure

Overview org.springframework.security:spring-security-saml2-service-provider is a security component for the Spring Framework. Affected versions of this package are vulnerable to Information Exposure via SAML message decryption prior to signature validation. An attacker can use the Service Provid...