High severity vulnerability was found in npm @backstage/plugin-scaffolder-backend (npm) .

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.


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.


This is vulnerability is patched in version 0.15.14 of @backstage/plugin-scaffolder-backend.



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