CVE-2026-22747

Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. This issue affects Spring Security: from 7.0.0 through 7.0.4.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://spring.io/security/cve-2026-22747	Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-22747
https://bugzilla.redhat.com/show_bug.cgi?id=2460487
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22747.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad en Spring Spring Security. SubjectX500PrincipalExtractor no maneja correctamente ciertos valores CN malformados de certificados X.509, lo que puede llevar a la lectura de un valor incorrecto para el nombre de usuario. En un certificado cuidadosamente elaborado, esto puede llevar a que un atacante suplante a otro usuario. Este problema afecta a Spring Security: desde la versión 7.0.0 hasta la 7.0.4.

Information

Published : 2026-04-22 06:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-22747

Mitre link : CVE-2026-22747

CVE.ORG link : CVE-2026-22747

JSON object : View

Products Affected

vmware

spring_security

CWE

CWE-297

Improper Validation of Certificate with Host Mismatch

CWE-295

Improper Certificate Validation

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