CVE-2026-41003: Spring Security SAML2 Service Provider: RelyingPartyRegistration may run arbitrary code on HTML forms generated by Spring Security filters

June 10, 2026 (updated August 12, 2026)

An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters.

Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.

References

github.com/advisories/GHSA-3pjj-qpw6-5fcm
github.com/spring-projects/spring-security/releases/tag/6.5.11
github.com/spring-projects/spring-security/releases/tag/7.0.6
nvd.nist.gov/vuln/detail/CVE-2026-41003
spring.io/security/cve-2026-41003

Code Behaviors & Features

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