CVE-2026-22747: medium-severity vulnerability in Spring Security
Unauthorized User Impersonation when Using X.509 Client Certificates
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.3%
exploitation probability
0.3%top 80% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
Spring · Spring SecurityRelated CVEs — Spring Security
In the same product, most dangerous first.
CVE-2019-3795LOWInsecure Randomness When Using a SecureRandom Instance Constructed by Spring SecurityEPSS 1.9%CVE-2019-11272—PlaintextPasswordEncoder authenticates encoded passwords that are nullEPSS 1.4%CVE-2024-22234HIGHCVE-2024-22234: Broken Access Control in Spring Security With Direct Use of isFullyAuthenticatedEPSS 0.7%CVE-2025-41232CRITICALCVE-2025-41232: Spring Security authorization bypass for method security annotations on private methodsEPSS 0.6%CVE-2025-22228HIGHCVE-2025-22228: Spring Security BCryptPasswordEncoder does not enforce maximum password lengthEPSS 0.6%CVE-2025-22223MEDIUMCVE-2025-22223EPSS 0.5%