User Impersonation Affecting org.springframework.security:spring-security-web package, versions [7.0.0-M1,7.0.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-16121020
- published22 Apr 2026
- disclosed22 Apr 2026
- creditNikita Markevich
Introduced: 22 Apr 2026
CVE-2026-22747 (opens in a new tab)How to fix?
Upgrade org.springframework.security:spring-security-web to version 7.0.5 or higher.
Overview
org.springframework.security:spring-security-web is a package within Spring Security that provides security services for the Spring IO Platform.
Affected versions of this package are vulnerable to User Impersonation in the SubjectX500PrincipalExtractor component. An attacker can gain unauthorized access to another user's account by presenting a specially crafted X.509 client certificate containing a malformed CN value.
Notes:
The
SubjectX500PrincipalExtractorcomponent sits behind Spring Security's pre-authentication flow, which assumes the presented credentials have already been validated by a trusted upstream. Exploiting this issue therefore presupposes a compromise of that upstream trust.The fix only addresses
SubjectX500PrincipalExtractorand notSubjectDnX509PrincipalExtractor, a deprecated component.