{"id":"CVE-2026-106561","revision":"347cc4bdd394438b8f8b06135e32b251","records":[{"revision":"347cc4bdd394438b8f8b06135e32b251","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-106561","aliases":[],"title":"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 t…","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.","state":0,"publishedAt":"2026-10-07T15:17:17.49+00:00","modifiedAt":"2026-10-16T14:55:13.473+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","score":5,"severity":"MEDIUM"}],"references":["https://github.com/backstage/backstage/commit/388926ae5734bc20bd6a1520d02896be834f6527","https://github.com/backstage/backstage/releases/tag/v1.54.2","https://github.com/backstage/backstage/security/advisories/GHSA-p795-mqf2-36mf"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106561","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-200","CWE-863"],"productCriteria":["cpe:2.3:a:linuxfoundation:backstage\\/plugin-kubernetes-backend:*:*:*:*:*:node.js:*:*","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-10-07T15:17:17.490","lastModified":"2026-10-16T14:55:13.473"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-106561","identifiers":["CVE-2026-106561"]},"retained":false,"historicalAffected":[]}],"coverage":[]}