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    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.

    Published:Apr 22, 2026
    Last Modified:Apr 28, 2026
    EPS:Apr 22, 2026
    EPSS Score:0.00025
    CVSS Score:6.8

    Affected Products

    Vendor
    Spring
    Product
    Spring Security
    Vendor
    Vmware
    Product
    Spring Security

    Exploits

    https://github.com/gsadagopan/cve-2026-22747-sandbox

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High