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OpenAdvisories
Medium · 5.3 CVE-2026-106502 EUVD-2026-94060GHSA-95p4-vv4g-jxxm

Backstage: Sensitive information may be exposed in Scaffolder task failure events

Published Oct 6, 2026 · Updated Oct 7, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
backstage backstage < 1.54.6 —
@backstage plugin-scaffolder-backend < 4.1.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @backstage/plugin-scaffolder-backend < 4.1.0 4.1.0 GHSA-95p4-vv4g-jxxm

References