CVE-2026-106563 (GCVE-0-2026-106563)

Vulnerability from cvelistv5 – Published: 2026-10-07 14:56 – Updated: 2026-10-07 14:56
VLAI
Title
Backstage: Improper entity validation in deprecated Kubernetes services endpoint
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
backstage backstage Affected: < 1.54.1
guessed Create a notification for this product.
@backstage plugin-kubernetes-backend Affected: < 0.21.8
guessed Create a notification for this product.
Show details on NVD website
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        }
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              "type": "CWE"
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    }
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    "dateReserved": "2026-10-06T20:31:59.017Z",
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          }
        ],
        "id": "CVE-2026-106563",
        "lastModified": "2026-10-07T15:52:18.453",
        "metrics": {
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    }
  }
}



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