Medium 6.8Published Apr 22, 2026

CVE-2026-22747Unauthorized User Impersonation when Using X.509 Client Certificates

Updated under an hour ago (Oct 27, 2026, 7:10 AM ET)

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It affects Spring Security and 12 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Spring Security

Exploited in the last 30 days

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: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-297, CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: vmware
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Spring Spring Security spring:security (from the name)	from 7.0.0 through 7.0.4	CNA record
Red Hat OpenShift Developer Tools and Services redhat:ocp_tools	Versions not stated	CISA ADP
Red Hat Red Hat build of Apache Camel for Spring Boot 4 redhat:camel_spring_boot	4	CISA ADP
Red Hat Red Hat build of Apache Camel - HawtIO 4 redhat:apache_camel_hawtio	4	CISA ADP
Red Hat Red Hat build of Quarkus redhat:quarkus	3	CISA ADP
Red Hat Red Hat Data Grid 8 redhat:jboss_data_grid	8	CISA ADP
Red Hat Red Hat Fuse 7 redhat:jboss_fuse	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 7 redhat:jboss_enterprise_application_platform	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	Versions not stated	CISA ADP
Red Hat Red Hat OpenShift Dev Spaces redhat:openshift_devspaces	3	CISA ADP
1–10 of 13

References

References

https://spring.io/security/cve-2026-22747	vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-22747
https://bugzilla.redhat.com/show_bug.cgi?id=2460487
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22747.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.