CVE-2026-47838

Published Jun 10, 2026

Last updated 5 days ago

Overview

Description
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.
Source
security@vmware.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.8
Impact score
5.2
Exploitability score
1.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Severity
MEDIUM

Weaknesses

security@vmware.com
CWE-287

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.