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    CVE-2026-106502

    Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose sensitive information in Scaffolder task failure events. Under specific template and failure conditions, an authenticated user may retrieve backend-managed credentials used during task execution from affected task events. This issue is fixed in version 4.1.0.

    Published:Oct 6, 2026
    Last Modified:Oct 13, 2026
    EPS:Oct 6, 2026
    EPSS Score:0.00284
    CVSS Score:5.3

    Affected Products

    Vendor
    Backstage
    Product
    Backstage
    Vendor
    Backstage
    Product
    Plugin-scaffolder-backend
    Vendor
    Linuxfoundation
    Product
    Backstage
    Vendor
    Linuxfoundation
    Product
    Backstage\/plugin-scaffolder-backend

    Exploits

    No exploit reference

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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