[ CVE-2026-106502 · Published 6 Oct 2026 ]
Backstage may expose sensitive information in Scaffolder task failure events
CVSS 5.3
EPSS <1%Fix available
[ Description ]Official description
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 credentials used during task execution from affected task events. This issue is fixed in version 4.1.0.
[ Fixes ]Fixes and patches
- @backstage/plugin-scaffolder-backend 4.1.0Fixed version · GitHub Advisories · npm package @backstage/plugin-scaffolder-backend: upgrade to 4.1.0 or later (affected < 4.1.0)
- Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ Packages ]Affected open-source packages
- @backstage/plugin-scaffolder-backend npmAffected < 4.1.0 · fixed in 4.1.0 · GHSA-95p4-vv4g-jxxm