GHSA-H53X-HJX6-25GR Backstage: Unsupported catalog cluster authentication mode in kubernetes backend

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...

EUVD-2026-94005

Backstage: Unsupported catalog cluster authentication mode in kubernetes backend...

Backstage: Unsupported catalog cluster authentication mode in kubernetes backend

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...

CVE-2026-106487

A flaw was found in the plugin-kubernetes-backend component of Backstage. In environments configured for catalog cluster discovery, an authenticated catalog contributor can define an unsupported authentication mode on cluster resource entities. This vulnerability allows the backend to query the...

CVE-2026-106561

A flaw was found in the Backstage Kubernetes backend plugin plugin-kubernetes-backend. An authenticated user with standard resource read permissions can retrieve sensitive values from Kubernetes queries that the plugin is designed to mask. This flaw allows information disclosure, potentially...

CVE-2026-106561

Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holding the standard Kubernetes resource read permission could...

CVE-2026-106563

Backstage is an open framework for building developer portals. Prior to 0.21.8, the @backstage/plugin-kubernetes-backend package is affected by improper entity validation in deprecated kubernetes services endpoint. An authenticated user with Kubernetes read permissions could access Kubernetes...

CVE-2026-106563 Backstage: Improper entity validation in deprecated Kubernetes services endpoint

Backstage is an open framework for building developer portals. Prior to 0.21.8, the @backstage/plugin-kubernetes-backend package is affected by improper entity validation in deprecated kubernetes services endpoint. An authenticated user with Kubernetes read permissions could access Kubernetes...

EUVD-2026-94376

Backstage is an open framework for building developer portals. Prior to 0.21.8, the @backstage/plugin-kubernetes-backend package is affected by improper entity validation in deprecated kubernetes services endpoint. An authenticated user with Kubernetes read permissions could access Kubernetes...

CVE-2026-106563

The Backstage open framework is vulnerable in the @backstage/plugin-kubernetes-backend package (prior to version 0.21.8 ) due to improper entity validation within a deprecated Kubernetes services endpoint. An authenticated user with Kubernetes read permissions can exploit this by supplying crafte...

CVE-2026-106563 Backstage: Improper entity validation in deprecated Kubernetes services endpoint

Backstage is an open framework for building developer portals. Prior to 0.21.8, the @backstage/plugin-kubernetes-backend package is affected by improper entity validation in deprecated kubernetes services endpoint. An authenticated user with Kubernetes read permissions could access Kubernetes...

CVE-2026-106561

The Backstage open framework, specifically the @backstage/plugin-kubernetes-backend package, is vulnerable to sensitive information disclosure in versions prior to 0.21.9 . An authenticated user with standard Kubernetes resource read permissions can retrieve sensitive values that the plugin is in...

EUVD-2026-94374

Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holding the standard Kubernetes resource read permission could...

CVE-2026-106561 Backstage: Sensitive information disclosure in Kubernetes resource queries

Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holding the standard Kubernetes resource read permission could...

CVE-2026-106561 Backstage: Sensitive information disclosure in Kubernetes resource queries

Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holding the standard Kubernetes resource read permission could...

CVE-2026-106561 Backstage: Sensitive information disclosure in Kubernetes resource queries

Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holding the standard Kubernetes resource read permission could...

PT-2026-107543

Name of the Vulnerable Software and Affected Versions @backstage/plugin-kubernetes-backend versions prior to 0.21.9 Description An authenticated user with standard Kubernetes resource read permissions can retrieve sensitive values that the plugin is intended to mask. This may expose credentials a...

PT-2026-107545

Name of the Vulnerable Software and Affected Versions @backstage/plugin-kubernetes-backend versions prior to 0.21.8 Description Improper entity validation in a deprecated Kubernetes services endpoint allows an authenticated user with Kubernetes read permissions to access workload data beyond thei...

CVE-2026-106487

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...

CVE-2026-106487 Backstage: Unsupported catalog cluster authentication mode in kubernetes backend

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...