AIKIDO-2026-11170
spring-security-saml2-service-provider is vulnerable to Improper Verification of Cryptographic Signature
37
Low Risk
This Affects:
spring-security-saml2-service-providerTL;DR
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.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
spring-security-saml2-service-provider is vulnerable to Improper Verification of Cryptographic Signature in versions 0.0.1 - 5.7.23, 5.8.0 - 5.8.25, 6.0.0 - 6.3.16, 6.4.0 - 6.4.16, 6.5.0 - 6.5.10 and 7.0.0 - 7.0.5.
How to fix this
Upgrade the org.springframework.security:spring-security-saml2-service-provider library to the patch version.
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
SOC 2Compliant
ISO 27001Compliant