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    CVE-2026-44837

    view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0.

    Published:May 26, 2026
    Last Modified:Jun 2, 2026
    EPS:May 26, 2026
    EPSS Score:0.00014
    CVSS Score:5.9

    Affected Products

    Vendor
    Viewcomponent
    Product
    View Component

    Exploits

    https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vphttps://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp

    Common Weakness Enumeration

    CWE-187 Partial String Comparison

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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