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    CVE-2026-3749

    A weakness has been identified in Bytedesk up to 1.3.9. This vulnerability affects the function handleFileUpload of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestService.java of the component SVG File Handler. Executing a manipulation can lead to unrestricted upload. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.4.5.1 is able to resolve this issue. This patch is called 975e39e4dd527596987559f56c5f9f973f64eff7. It is recommended to upgrade the affected component.

    Published:Mar 8, 2026
    Last Modified:Apr 16, 2026
    EPS:Mar 8, 2026
    EPSS Score:0.00127
    CVSS Score:6.3

    Affected Products

    Vendor
    Bytedesk
    Product
    Bytedesk

    Exploits

    https://github.com/Bytedesk/bytedesk/issues/19https://github.com/Bytedesk/bytedesk/issues/19#issue-3993480676https://github.com/Bytedesk/bytedesk/issues/19#issuecomment-3976672845

    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