CVE-2026-40995

X.509 authentication bypasses Spring Security account checks

State: Published
Severity: 5.4 Medium
Published: Jun 11, 2026
Updated: Jun 23, 2026
Reserved: Apr 16, 2026

Description

X509AuthenticationProvider could issue a fully authenticated X509AuthenticationToken when a presented certificate mapped to UserDetails, without applying Spring Security's standard account lifecycle checks (disabled, locked, expired, or credentials-expired accounts).

Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	vmware

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
Spring Web ServicesSpring	5.0.0 to before 5.0.1.1Affected 4.1.0 to before 4.1.3.1Affected 4.0.0 to before 4.0.19Affected 3.1.0 to before 3.1.9Affected

References

https://spring.io/security/cve-2026-40995

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