CVE-2026-22747

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.

Database specific

{
    "cna_assigner": "vmware",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22747.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "7.0.0"
                },
                {
                    "last_affected": "7.0.4"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "7.0.0"
                },
                {
                    "fixed": "7.0.4"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/spring-projects/spring-security

Affected ranges

Type

GIT

Repo

https://github.com/spring-projects/spring-security

Events

Introduced

1d99a7fb14c62354cac00412cce2071892cdf465

Fixed

53bc6a77963209bb2a5f3efdd855b1f4a8051cc3

Database specific

{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "7.0.0"
        },
        {
            "fixed": "7.0.5"
        }
    ]
}

Affected versions

7.*

7.0.0

7.0.1

7.0.2

7.0.3

7.0.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22747.json"