Bug 2460487 (CVE-2026-22747) - CVE-2026-22747 Spring Security: Spring Security: User impersonation via malformed X.509 certificate Common Name (CN) values
Summary: CVE-2026-22747 Spring Security: Spring Security: User impersonation via malfo...
Keywords:
Status: NEW
Alias: CVE-2026-22747
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-22 06:01 UTC by OSIDB Bzimport
Modified: 2026-04-27 12:44 UTC (History)
66 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-22 06:01:28 UTC 
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.
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