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CVE-2026-106499

CVE-2026-106499 · Backstage: Secret-derived values may be exposed in scaffolder task logs

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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 · Moyenne · EPSS 0,3% · Correctif disponible

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