OCTOBER 16, 2026
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Case File

CVE-2026-106563

MEDIUM · CVSS 5.3 EPSS 0.22% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-10-07 · Last synced 2026-10-16

CyberRota Analysis

AI-Generated

The @backstage/plugin-kubernetes-backend package in Backstage versions prior to 0.21.8 is vulnerable due to improper entity validation in a deprecated Kubernetes services endpoint. This flaw allows authenticated users with read permissions to access Kubernetes workload metadata beyond their intended scope by manipulating entity data. Organizations using Backstage with Kubernetes should prioritize upgrading to version 0.21.8 to mitigate the risk of unauthorized data exposure.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-106563
Severity
MEDIUM
CVSS
5.3
EPSS
0.22%
Kubernetes

Original NVD 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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