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HIGH

GHSA-2g8g-63j4-9w3r

RCE vulnerability affecting v1beta3 templates in @backstage/plugin-scaffolder-backend

Quick fix

GHSA-2g8g-63j4-9w3r — @backstage/plugin-scaffolder-backend: upgrade to the fixed version with the command below.

npm install @backstage/plugin-scaffolder-backend@0.15.14

Details

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)

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/@backstage/plugin-scaffolder-backend
Introduced in: 0Fixed in: 0.15.14
Fixnpm install @backstage/plugin-scaffolder-backend@0.15.14

References