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    CVE-2025-11230

    Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

    Published:Oct 3, 2025
    Last Modified:Dec 19, 2025
    EPS:Nov 19, 2025
    EPSS Score:0.00141
    CVSS Score:7.5

    Affected Products

    Vendor
    Haproxy
    Product
    Aloha Appliance
    Vendor
    Haproxy
    Product
    Haproxy
    Vendor
    Haproxy
    Product
    Haproxy Enterprise
    Vendor
    Haproxy
    Product
    Kubernetes Ingress Controller

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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