AlchemyCMS: Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper

Summary A vulnerability was discovered during a manual security audit of the AlchemyCMS source code. The application uses the Ruby eval function to dynamically execute a string provided by the resourcehandler.enginename attribute in Alchemy::ResourcesHelperresourceurlproxy. Details The...

AlchemyCMS - Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper

Summary A vulnerability was discovered during a manual security audit of the AlchemyCMS source code. The application uses the Ruby eval function to dynamically execute a string provided by the resourcehandler.enginename attribute in Alchemy::ResourcesHelperresourceurlproxy. Details The...

CVE-2026-23885 AlchemyCMS has Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper

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 resourcehandler.enginename attribute in Alchemy::ResourcesHelperresourceurlproxy. Th...

CVE-2026-23885

CVE-2026-23885 – AlchemyCMS RCE via eval in ResourcesHelper . The vulnerability affects AlchemyCMS (Ruby on Rails) prior to 7.4.12 and 8.0.3, where the code in Alchemy::ResourcesHelper#resource_url_proxy uses Ruby’s eval() on the value of resource_handler.engine_name. This string is sourced from ...

CVE-2026-23885 AlchemyCMS has Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper

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 resourcehandler.enginename attribute in Alchemy::ResourcesHelperresourceurlproxy. Th...

AlchemyCMS security vulnerabilities

AlchemyCMS is an open-source content management system based on the AlchemyCMS – a Rails CMS framework. Vulnerabilities existed in versions prior to 7.4.12 and 8.0.3 of AlchemyCMS. These vulnerabilities stemmed from the use of the Ruby eval function in Alchemy::ResourcesHelperresourceurlproxy,...