CVE-2026-106504
CVE-2026-106504 · Backstage: Sensitive information exposure in scaffolder task logs
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. This issue is fixed in version 4.1.0.
CVSS 6.5 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
backstage
- Versions
- < 1.54.6: Affected
No fix published
plugin-scaffolder-backend
- Versions
- < 4.1.0: Affected
No fix published
@backstage/plugin-scaffolder-backend npm
- Affected ranges
- SEMVER: < 4.1.0
Update to 4.1.0