CVE-2026-22747: VMware Spring Security

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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

• VMware Spring Security: from 7.0.0, before 7.0.5 (fixed in 7.0.5)

Published 2026-04-22. Last modified 2026-07-15.