{"id":"CVE-2026-106500","revision":"2b40894717ec40e3833891705cb0775d","records":[{"revision":"2b40894717ec40e3833891705cb0775d","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-106500","aliases":[],"title":"Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper task state validation in scaffolder backend. An authenticated us…","description":"Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper task state validation in scaffolder backend. An authenticated user with permission to create and access Scaffolder tasks may, under specific timing and deployment conditions, affect files accessible to the Backstage backend. If backend application files are writable, the confidentiality, integrity, and availability of the backend may be compromised. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.","state":0,"publishedAt":"2026-10-06T22:17:05.06+00:00","modifiedAt":"2026-10-13T14:38:24.9+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:H/I:H/A:H","score":8.5,"severity":"HIGH"}],"references":["https://github.com/backstage/backstage/commit/0d24f1b8701f3dde6cd597f81997c1ea873a43ae","https://github.com/backstage/backstage/commit/56be299dd3ef6706e13e76ea2f8a9b0dd0b6413d","https://github.com/backstage/backstage/commit/9e86c95a1a3ddfd54db03731cd8678aa63495175","https://github.com/backstage/backstage/releases/tag/v1.49.6","https://github.com/backstage/backstage/releases/tag/v1.50.5","https://github.com/backstage/backstage/releases/tag/v1.54.6","https://github.com/backstage/backstage/security/advisories/GHSA-xvgh-hmx8-9xxf"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106500","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-59","CWE-362"],"productCriteria":["cpe:2.3:a:linuxfoundation:backstage\\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-10-06T22:17:05.060","lastModified":"2026-10-13T14:38:24.900"},"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-2026-106500","identifiers":["CVE-2026-106500"]},"retained":false,"historicalAffected":[]}],"coverage":[]}