Enterprise SAML SSO in Spring Boot: A Complete Integration Guide for 2026

The Verizon 2025 Data Breach Investigations Report emphasizes the vulnerability of weak credentials, highlighting that 81% of hacking-related breaches involve such issues. For B2B SaaS companies using Spring Boot, federating authentication through a hosted OpenID Connect (OIDC) flow like SSOJet's is a strategic way to remove passwords from the attack surface. This guide details a production-ready integration with Spring Boot 3.3+, leveraging SSOJet's OIDC hosted page flow for enterprise single sign-on (SSO) without the need for SAML library dependencies in the codebase. SSOJet simplifies the multi-tenant SAML implementation by serving as a broker, handling SAML connections and normalizing claims before redirecting back to the Spring Boot application. This approach allows the use of Spring Security's OAuth2LoginConfigurer for handling OIDC flows and ensures scalable and secure authentication processes, reducing both the attack surface and the complexity of enterprise customer onboarding. Additionally, SSOJet provides a flat-rate pricing model and supports compliance with major security standards, making it a practical choice for companies looking to implement enterprise SSO effectively.