CVE-2026-106563

Description

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 workload data beyond their intended scope by supplying crafted entity data to the deprecated services endpoint. The exposure is limited to read-only access to Kubernetes object metadata across configured clusters. This issue is fixed in version 0.21.8.

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Produits concernés

• backstage
• @backstage plugin-kubernetes-backend
• Linuxfoundation backstage\/plugin-kubernetes-backend
• Linuxfoundation backstage

Scores CVSS

Faiblesses (CWE)

• CWE-20
• CWE-862

Références

• https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29 Patch
• https://github.com/backstage/backstage/releases/tag/v1.54.1 PatchRelease Notes
• https://github.com/backstage/backstage/security/advisories/GHSA-r9ph-3637-55px MitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories