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    1 vulnerability by AlchemyCMS

    CVE-2026-23885 (GCVE-0-2026-23885)

    Vulnerability from cvelistv5 – Published: 2026-01-19 21:09 – Updated: 2026-01-21 21:12
    VLAI
    Title
    AlchemyCMS has Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper
    Summary
    Alchemy is an open source content management system engine written in Ruby on Rails. Prior to versions 7.4.12 and 8.0.3, the application uses the Ruby `eval()` function to dynamically execute a string provided by the `resource_handler.engine_name` attribute in `Alchemy::ResourcesHelper#resource_url_proxy`. The vulnerability exists in `app/helpers/alchemy/resources_helper.rb` at line 28. The code explicitly bypasses security linting with `# rubocop:disable Security/Eval`, indicating that the use of a dangerous function was known but not properly mitigated. Since `engine_name` is sourced from module definitions that can be influenced by administrative configurations, it allows an authenticated attacker to escape the Ruby sandbox and execute arbitrary system commands on the host OS. Versions 7.4.12 and 8.0.3 fix the issue by replacing `eval()` with `send()`.
    Severity
    6.4 (Medium)
    CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
    Assigner
    References
    Impacted products
    Vendor Product Version
    AlchemyCMS alchemy_cms Affected: < 7.4.12
    Affected: >= 8.0.0.a, < 8.0.3
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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