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    CVE-2026-122006

    The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality.

    Published:Nov 4, 2026
    Last Modified:Nov 5, 2026
    EPS:Nov 4, 2026
    EPSS Score:0.0069
    CVSS Score:9.8

    Affected Products

    Vendor
    Rubyonrails
    Product
    Active Storage

    Exploits

    https://github.com/charlie-goldenowl/cve-2026-122006-check

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    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