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CVE-2026-22747

Unauthorized User Impersonation when Using X.509 Client Certificates

Published: Apr 22, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-297
6.8MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-297CWE-295

Affected Products

vmware
commercial·USaka vmware inc
spring securityLibraryLibrary
OSS Libraries / web-framework
Spring
oss-projectaka spring boot, spring framework, spring security
Spring Security
OSS Libraries

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://spring.io/security/cve-2026-22747
spring.io
https://access.redhat.com/security/cve/CVE-2026-22747
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2460487
bugzilla.redhat.com
and 1 more references View all →

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