CVE-2026-47838mediumCWE-287

Unauthorized User Impersonation when Using X.509 Client Certificates

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 6.8epss 0.1%

probabilidad de explotación

0.1%top 98% de las CVE

explotación observada

noninguna fuente lo reporta

SubjectDnX509PrincipalExtractor 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. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Productos afectados

Spring · Spring Security

Referencias

https://spring.io/security/cve-2026-47838