OCTOBER 16, 2026
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Case File

CVE-2026-106561

MEDIUM · CVSS 5 EPSS 0.20% 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 0.21.9 is vulnerable to sensitive information disclosure, allowing authenticated users with standard Kubernetes resource read permissions to access masked sensitive values, including credentials. The impact is limited to resources that the Backstage service account can read, specifically those matching the targeted catalog entity's namespace and label selector. Organizations using Backstage with Kubernetes should prioritize upgrading to version 0.21.9 to mitigate this risk.

Public Exploit Signal

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

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-106561
Severity
MEDIUM
CVSS
5
EPSS
0.20%
Kubernetes

Original NVD Description

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.

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