Insertion of Sensitive Information into Log File Affecting @backstage/plugin-scaffolder-backend package, versions <3.1.4
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- published5 Mar 2026
- disclosed5 Mar 2026
- creditUnknown
Introduced: 5 Mar 2026
NewCVE-2026-29184 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-scaffolder-backend to version 3.1.4 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 Insertion of Sensitive Information into Log File via the log redaction mechanism in task event logs. An attacker can access sensitive session tokens by registering a malicious template in the catalog and having a victim execute it.
Workaround
This vulnerability can be mitigated by implementing a custom permission policy that restricts scaffolder.task.read so users can only read their own task logs, or by restricting who can register templates in the catalog to trusted users only.