CVE-2026-47838

SubjectDnX509PrincipalExtractor 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. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://spring.io/security/cve-2026-47838	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:vmware:spring_security::::::::
	cpe:2.3:a:vmware:spring_security::::::::
	cpe:2.3:a:vmware:spring_security::::::::
	cpe:2.3:a:vmware:spring_security::::::::
	cpe:2.3:a:vmware:spring_security::::::::

History

No history.

Information

Published : 2026-06-10 00:16

Updated : 2026-07-23 09:10

NVD link : CVE-2026-47838

Mitre link : CVE-2026-47838

CVE.ORG link : CVE-2026-47838

JSON object : View

Products Affected

vmware

spring_security

CWE

CWE-287

Improper Authentication

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