CVE-2026-41694

SAML Payloads Decrypted Without Valid Signature

State: Published
Severity: 3.7 Low
Published: Jun 9, 2026
Updated: Jun 27, 2026
Reserved: Apr 22, 2026

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 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.

Scores

CVSS	Score	Vector	Source
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	vmware

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
Spring SecuritySpring	5.7.0 to before 5.7.24Affected 5.8.0 to before 5.8.26Affected 6.3.0 to before 6.3.17Affected 6.4.0 to before 6.4.17Affected 6.5.0 to before 6.5.10.2Affected 7.0.0 to before 7.0.5.1Affected

References

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

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