{"id":"CVE-2026-106487","revision":"2d558d0a88324008a817f57034f7acbd","records":[{"revision":"2d558d0a88324008a817f57034f7acbd","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-106487","aliases":[],"title":"Backstage is an open framework for building developer portals. Prior to 0.21.10, the @backstage/plugin-kubernetes-backend package is affected by unsupported catalog cluster authentication mode in kubernetes backend. Deployments using catalo…","description":"Backstage is an open framework for building developer portals. Prior to 0.21.10, the @backstage/plugin-kubernetes-backend package is affected by unsupported catalog cluster authentication mode in kubernetes backend. Deployments using catalog cluster discovery may be affected when catalog contributors can create or modify kubernetes-cluster Resource entities. With the required endpoint permissions and pod RBAC, the backend can use its local in-cluster identity, potentially exposing Kubernetes resources readable by that identity. The credential is used only with the local in-cluster API endpoint and is not sent to the catalog-supplied endpoint. This issue is fixed in version 0.21.10.","state":0,"publishedAt":"2026-10-06T21:17:17.477+00:00","modifiedAt":"2026-10-22T18:49:32.183+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","score":3.5,"severity":"LOW"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","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/c14f8be6908f0f719b16356e5492352311e28946","https://github.com/backstage/backstage/releases/tag/v1.54.6","https://github.com/backstage/backstage/security/advisories/GHSA-h53x-hjx6-25gr"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106487","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-441"],"productCriteria":["cpe:2.3:a:linuxfoundation:backstage\\/plugin-kubernetes-backend:*:*:*:*:*:node.js:*:*","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-10-06T21:17:17.477","lastModified":"2026-10-22T18:49:32.183"},"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-2026-106487","identifiers":["CVE-2026-106487"]},"retained":false,"historicalAffected":[]}],"coverage":[]}