CVE-2026-106499 - Backstage: Secret-derived values may be exposed in scaffolder task logs
CVE ID :CVE-2026-106499
Published : Oct. 6, 2026, 10:17 p.m. | 1 hour, 28 minutes ago
Description :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.
Severity: 4.9 | MEDIUM
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Published : Oct. 6, 2026, 10:17 p.m. | 1 hour, 28 minutes ago
Description :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.
Severity: 4.9 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...