CVE-2026-47838mediumCWE-287

Unauthorized User Impersonation when Using X.509 Client Certificates

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6.8epss 0.1%

probabilidade de exploração

0.1%top 98% das CVEs

exploração observada

nãonenhuma fonte 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

Produtos afetados

Spring · Spring Security

Referências

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