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

Impact 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 in task logs, exposing those values to...

GHSA-MFVQ-X7VR-RGQG Backstage: Secret-derived values may be exposed in scaffolder task logs

Impact 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 in task logs, exposing those values to...

EUVD-2026-94057

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

CVE-2026-106504

A flaw was found in plugin-scaffolder-backend. An authenticated user with permissions to create and read scaffolder tasks can observe sensitive values in task logs when an execution step is denied by action permissions. This flaw allows an attacker to access sensitive input data, resulting in...

EUVD-2026-94069

Backstage has sensitive information exposure in scaffolder task logs...

GHSA-4XVQ-3M68-H444 Backstage has sensitive information exposure in scaffolder task logs

Impact An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. Patches Patched in...

Backstage has sensitive information exposure in scaffolder task logs

Impact An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. Patches Patched in...

CVE-2026-106499

A flaw was found in the Backstage Scaffolder backend. In environments configured with default environment secrets, an authenticated attacker with permissions to create or modify templates can cause secret-derived values to be recorded in task logs. This issue leads to information disclosure,...

CVE-2026-106504

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106499

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...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504

The Backstage framework is vulnerable in the @backstage/plugin-scaffolder-backend package prior to version 4.1.0 . The root cause is sensitive information exposure within scaffolder task logs. An authenticated user capable of creating and reading tasks can observe sensitive values if a deployment...

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

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...

CVE-2026-106499

The Backstage framework, specifically the @backstage/plugin-scaffolder-backend package, is vulnerable in versions prior to 4.1.0 . The issue allows secret-derived values to be exposed in Scaffolder task logs when deployments configure sensitive scaffolder.defaultEnvironment.secrets and permit una...

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

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...

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

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...

CVE-2026-106504: Insertion of Sensitive Information into Log File

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive...

PT-2026-107301

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package allows sensitive information exposure within scaffolder task logs. An authenticated user with permissions to create and read scaffolder tasks can...