CVE-2026-106499
CVE-2026-106499 · Backstage: Secret-derived values may be exposed 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 could expose secret-derived values in Scaffolder task logs. Deployments that configure sensitive scaffolder.defaultEnvironment.secrets and allow an attacker to create or modify Scaffolder templates are affected. A template author could cause secret-derived values used during template iteration to be persisted and exposed to users who can access the resulting task logs. This issue is fixed in version 4.1.0.
CVSS 4.9 · 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