Missing Authorization Affecting @backstage/plugin-kubernetes-backend package, versions <0.21.8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-106563 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-kubernetes-backend to version 0.21.8 or higher.
Overview
@backstage/plugin-kubernetes-backend is an A Backstage backend plugin that integrates towards Kubernetes
Affected versions of this package are vulnerable to Missing Authorization via the Kubernetes objects endpoint in KubernetesRouter, where the entity field supplied in the request body is used directly without being validated against the catalog. An authenticated attacker can supply an arbitrary entity reference in the request body to retrieve Kubernetes objects associated with an entity they are not authorized to access, bypassing catalog-level access controls.