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    CVE-2026-106494

    Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage url readers. An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection. This issue is fixed in version 0.17.8.

    Published:Oct 6, 2026
    Last Modified:Oct 22, 2026
    EPS:Oct 6, 2026
    EPSS Score:0.00286
    CVSS Score:4.4

    Affected Products

    Vendor
    Backstage
    Product
    Backend-defaults
    Vendor
    Backstage
    Product
    Backstage
    Vendor
    Linuxfoundation
    Product
    Backstage
    Vendor
    Linuxfoundation
    Product
    Backstage\/backend Defaults

    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