Backstage may expose sensitive information in Scaffolder task failure events

Impact Under specific template and failure conditions, an authenticated user may be able to retrieve sensitive values from Scaffolder task events. This can expose backend-managed credentials used during task execution. Patches Patched in @backstage/plugin-scaffolder-backend version 4.1.0...

CVE-2026-106502 Backstage: Sensitive information may be exposed in Scaffolder task failure events

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose sensitive information in Scaffolder task failure events. Under specific template and failure conditions, an authenticated user may retrieve backend-managed...

CVE-2026-106502

The Backstage framework, specifically the @backstage/plugin-scaffolder-backend package in versions prior to 4.1.0 , contains a vulnerability where sensitive information may be exposed in Scaffolder task failure events . Under specific template and failure conditions, an authenticated user could r...