Backstage has improper input validation in scaffolder task list ordering
Impact
An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and repeated requests.
Patches
Patched in @backstage/plugin-scaffolder-backend version 4.1.0
Workarounds
- At the gateway or reverse proxy, reject task-list requests that specify custom ordering, or allow ordering only by
created_at,status, andcreated_by. - Restrict scaffolder task creation and task read permissions to trusted users, preferably using owner-based task-read conditions.
- Disabling task recovery can reduce secret retention after a task is claimed, but it does not protect secrets in queued tasks and should not be treated as complete mitigation.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | @backstage/plugin-scaffolder-backend | < 4.1.0 | 4.1.0 |
Referencias
- https://github.com/backstage/backstage/security/advisories/GHSA-vwp5-f99x-x3rq
- https://nvd.nist.gov/vuln/detail/CVE-2026-106506
- https://github.com/backstage/backstage/commit/e673a869449874a9169e8f89852e75e862011b93
- https://github.com/backstage/backstage
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N- Debilidad (CWE)
CWE-202, CWE-203- Plataforma
- npm
- Paquete
@backstage/plugin-scaffolder-backend- Publicada
- 07.10.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-vwp5-f99x-x3rq - CC BY 4.0
Historial de vulnerabilidades: @backstage/plugin-scaffolder-backend
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 17
- Primera → última
- 10.2021 10.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 1
- Alta 6
- Media 8
- Baja 2
Divulgaciones por año
- 2021: 3
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 12
-
Backstage has improper input validation in scaffolder task list ordering esta entrada
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