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CVE-2026-106499

Backstage: Secret-derived values may be exposed in scaffolder task logs PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
backstage / backstageaffected < 1.54.6
@backstage / plugin-scaffolder-backendaffected < 4.1.0

CWE

CWE-532

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.