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    CVE-2026-106495

    Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper access control in backend action invocation. An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced. This issue is fixed in version 0.17.8.

    Published:Oct 12, 2026
    Last Modified:Oct 13, 2026
    EPS:Oct 12, 2026
    EPSS Score:0.00238
    CVSS Score:4.3

    Affected Products

    Vendor
    Backstage
    Product
    Backend-defaults
    Vendor
    Backstage
    Product
    Backstage

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    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