8.1Alta
CVE-2026-106503Backstage: Scaffolder action input authorization bypass
Descripción
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 scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| backstage | backstage | < 1.49.6, >= 1.50.0-next.0, < 1.50.5, >= 1.51.0-next.0, < 1.54.6 | |
| @backstage | plugin-scaffolder-backend | < 3.3.1, >= 3.4.0, < 3.4.1, >= 4.0.0, < 4.0.3, >= 4.0.4, < 4.1.0 | |
| linuxfoundation | backstage | < 1.49.6 | |
| linuxfoundation | backstage/plugin-scaffolder-backend | < 3.3.1 |
Referencias y parches
- https://github.com/backstage/backstage/security/advisories/GHSA-hmp2-4m7g-22cv MitigationVendor Advisory
- https://github.com/backstage/backstage/commit/11c1384c0649b8ab26391c6a4e4f34b80ab0d188 Patch
- https://github.com/backstage/backstage/commit/a91ed72d540e80b62a73b39bb1563ff5018d52d1 Patch
- https://github.com/backstage/backstage/commit/e307e4f487103d815e484291b3fda778ab9983bf Patch
- https://github.com/backstage/backstage/releases/tag/v1.49.6 PatchRelease Notes
- https://github.com/backstage/backstage/releases/tag/v1.50.5 PatchRelease Notes
- https://github.com/backstage/backstage/releases/tag/v1.54.6 PatchRelease Notes
Coincidencias CPE (NVD) (7)
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*< 3.3.1cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*≥ 3.4.0 < 3.4.1cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*≥ 4.0.0 < 4.0.3cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*≥ 4.0.4 < 4.1.0cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*< 1.49.6cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*≥ 1.50.0 < 1.50.5cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*≥ 1.51.0 < 1.54.6