Tóm tắt nhanh
- CVE-2026-106487 là lỗ hổng mức TRUNG BÌNH (CVSS 5.0) ảnh hưởng backstage (linuxfoundation), backstage/plugin-kubernetes-backend (linuxfoundation), @backstage/plugin-kubernetes-backend.
- Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.26%, cao hơn 18.1% các lỗ hổng khác.
- Cách xử lý: cập nhật lên 1.54.6, 0.21.10 hoặc mới hơn.
Mô tả
Impact
Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities. With the required endpoint permissions and pod RBAC, the backend can use its local in-cluster identity, potentially exposing Kubernetes resources readable by that identity. The credential is used only with the local in-cluster API endpoint and is not sent to the catalog-supplied endpoint.
Patches
Patched in @backstage/plugin-kubernetes-backend version 0.21.10
Workarounds
- Do not configure service account authentication through catalog-provided clusters; use the supported static configuration method when service account authentication is required.
- Restrict catalog ingestion so untrusted users cannot create or alter Kubernetes cluster Resource entities.
Mô tả của NVD
Backstage is an open framework for building developer portals. Prior to 0.21.10, the @backstage/plugin-kubernetes-backend package is affected by unsupported catalog cluster authentication mode in kubernetes backend. Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities. With the required endpoint permissions and pod RBAC, the backend can use its local in-cluster identity, potentially exposing Kubernetes resources readable by that identity. The credential is used only with the local in-cluster API endpoint and is not sent to the catalog-supplied endpoint. This issue is fixed in version 0.21.10.
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