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cve-2026-47838 - MEDIUM - Unauthorized User Impersonation when Using X.509 Client Certificates

🗓️ 09 Jun 2026 00:00:00Reported by SpringType 
spring
 spring🔗 spring.io👁 63 Views

CVE-2026-47838 enables impersonation via malformed X.509 CN in SubjectDnX509PrincipalExtractor on Spring Security 7.0.x.

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09 Jun 2026 00:00Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.16.8 - 8.1
EPSS0.00133
SSVC
certificate parsing flawusername extraction errorspring security issueimpersonation vulnerability
63