Spring Security Advisories

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SAML Payloads Decrypted Without Valid Signature

LOW | JUNE 09, 2026 | CVE-2026-41694

Description

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 Spring Products and Versions

Spring Security:

  • 7.0.0 - 7.0.5
  • 6.5.0 - 6.5.10
  • 6.4.0 - 6.4.16
  • 6.3.0 - 6.3.16
  • 5.8.0 - 5.8.25
  • 5.7.23 and earlier

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
7.0.6OSS
7.0.5.1Enterprise Support Only
6.5.11OSS
6.5.10.2Enterprise Support Only
6.4.17Enterprise Support Only
6.3.17Enterprise Support Only
5.8.26Enterprise Support Only
5.7.24Enterprise Support Only

No further mitigation steps are necessary.

References

History

  • 2026-06-09: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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