SAML Payloads Decrypted Without Valid Signature
CVE-2026-41694

3.7LOW

Key Information:

Vendor

Spring

Status
Spring Security
Vendor
CVE Published:
9 June 2026

What is CVE-2026-41694?

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 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.

Affected Version(s)

Spring Security 5.7.0 < 5.7.24

Spring Security 5.8.0 < 5.8.26

Spring Security 6.3.0 < 6.3.17

References

https://spring.io/security/cve-2026-41694

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.