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

The @backstage/plugin-kubernetes-backend package in Backstage (prior to version 0.21.10 ) is vulnerable to an unsupported catalog cluster authentication mode in the Kubernetes backend. If catalog contributors can modify kubernetes-cluster Resource entities , the backend might use its local in-clu...