Symlink Attack Affecting @backstage/plugin-scaffolder-backend package, versions <2.2.2>=3.0.0-next.0 <3.0.2>=3.1.0-next.0 <3.1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Jan 2026
- disclosed21 Jan 2026
- creditUnknown
Introduced: 21 Jan 2026
NewCVE-2026-24046 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-scaffolder-backend to version 2.2.2, 3.0.2, 3.1.1 or higher.
Overview
@backstage/plugin-scaffolder-backend is a The Backstage backend plugin that helps you create new things
Affected versions of this package are vulnerable to Symlink Attack via multiple actions, including debug:log, fs:delete, and archive extraction. A user who create and execute Scaffolder templates can read, delete, or write arbitrary files outside the intended workspace.
Workaround
This vulnerability can be mitigated by limiting access to template creation and updates, restricting who can execute Scaffolder templates via the permissions framework, auditing existing templates for symlink usage, and running the application in a containerized environment with restricted filesystem access.