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

Açıklama

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 retrieve sensitive values that the Kubernetes plugin is designed to mask, potentially exposing credentials and other confidential material held in the connected clusters. Exposure is limited to resources that the Backstage service account is permitted to read and that match the targeted catalog entity's namespace and label selector. Deployments whose cluster credentials do not grant read access to these resources are unaffected. This issue is fixed in version 0.21.9.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• https://github.com/backstage/backstage/security/advisories/GHSA-p795-mqf2-36mf MitigationVendor Advisory
• https://github.com/backstage/backstage/commit/388926ae5734bc20bd6a1520d02896be834f6527 Patch
• https://github.com/backstage/backstage/releases/tag/v1.54.2 PatchRelease Notes