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CVE PROGRAM SOURCE RECORD6.8 Medium

CVE-2026-22747

Unauthorized User Impersonation when Using X.509 Client Certificates

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Spring Spring Security

Default version status: unaffected

  • 7.0.0 to ≤ 7.0.4affected

References