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    CVE-2026-78208

    exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.

    Published:Aug 24, 2026
    Last Modified:Aug 29, 2026
    EPS:Aug 24, 2026
    EPSS Score:0.00373
    CVSS Score:7.5

    Affected Products

    Vendor
    Exceljs Project
    Product
    Exceljs

    Exploits

    No exploit reference

    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