CVE-2026-106561

Published: Ott 07, 2026 Last Modified: Ott 07, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,0
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: none
Availability: none

Description

AI Translation Available

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.

200

Exposure of Sensitive Information to an Unauthorized Actor

Draft
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Application Data
Applicable Platforms
Technologies: Not Technology-Specific, Web Based, Mobile
View CWE Details
863

Incorrect Authorization

Incomplete
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: Web Server, Database Server, Not Technology-Specific
View CWE Details
https://github.com/backstage/backstage/commit/388926ae5734bc20bd6a1520d02896be8…
https://github.com/backstage/backstage/releases/tag/v1.54.2
https://github.com/backstage/backstage/security/advisories/GHSA-p795-mqf2-36mf