要点
- CVE-2026-106496 は backstage (linuxfoundation), backstage plugin-catalog-backend (linuxfoundation), @backstage/plugin-catalog-backend に影響する深刻度「中」 (CVSS 6.5) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.24%（全脆弱性の 15.6% より高い）。
- 対処：1.54.6, 3.9.1 以降に更新してください。
概要
Impact
Under certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host.
Patches
Patched in @backstage/plugin-catalog-backend version 3.9.1
Workarounds
No practical workarounds are available. Upgrade to the patched version.
NVD の説明
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent enforcement of allowed location types during catalog processing. Under certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host. This issue is fixed in version 3.9.1.
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