The templating library used by the scaffolder backend assumes that templates are trusted which is an undesired property of the scaffolder-backend. This has now been mitigated by sandboxing the template code execution. Impact A malicious actor with write access to a registered scaffolder template could manipulate the template in a way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in the template yaml definition itself and not by user input data. Patches This is vulnerability is patched in version "0.15.14" of "@backstage/plugin-scaffolder-backend". For more information If you have any questions or comments about this advisory: * Open an issue in the "Backstage repository" (https://github.com/backstage/backstage) * Visit our chat, linked to in "Backstage README" (https://github.com/backstage/backstage)