CVE-2026-106487
CVE-2026-106487 · Backstage: Unsupported catalog cluster authentication mode in kubernetes backend
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 3.5 · Low · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
backstage
- Versions
- < 1.54.6: Affected
No fix published
plugin-kubernetes-backend
- Versions
- < 0.21.10: Affected
No fix published
@backstage/plugin-kubernetes-backend npm
- Affected ranges
- SEMVER: < 0.21.10
Update to 0.21.10