spring-projects/spring-security · Security
Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates
- GHSA ID
- GHSA-2jrg-rf5x-568g
- CVE ID
- CVE-2026-22747
- Severity
- medium
- Published
- Updated
- CVSS
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- CVSS v3
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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.
CWEs
- CWE-297 · Improper Validation of Certificate with Host Mismatch