要点
- CVE-2026-106502 は backstage (linuxfoundation), backstage/plugin-scaffolder-backend (linuxfoundation), @backstage/plugin-scaffolder-backend に影響する深刻度「中」 (CVSS 5.3) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.29%（全脆弱性の 21.7% より高い）。
- 対処：1.54.6, 4.1.0 以降に更新してください。
概要
Impact
Under specific template and failure conditions, an authenticated user may be able to retrieve sensitive values from Scaffolder task events. This can expose backend-managed credentials used during task execution.
Patches
Patched in @backstage/plugin-scaffolder-backend version 4.1.0
Workarounds
- Restrict Scaffolder template execution and task-event access to trusted users until the patched version is deployed.
NVD の説明
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.
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