Path Traversal in @backstage/plugin-scaffolder-backend
Impact
A malicious actor could read sensitive files from the environment where Scaffolder tasks are run. The attack is executed by crafting a custom Scaffolder template with a publish:github:pull-request action using a particular source path. When the template is executed the sensitive files would be included in the published pull request.
This vulnerability is mitigated by the fact that an attacker would need access to create and register templates in the Backstage catalog, and that the attack is very visible given that the exfiltration happens via a pull request.
Patches
The vulnerability is patched in the 0.15.9 release of @backstage/plugin-scaffolder-backend.
For more information
If you have any questions or comments about this advisory:
- Open an issue in the Backstage repository
- Visit our chat, linked to in Backstage README
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | @backstage/plugin-scaffolder-backend | >= 0.9.4, < 0.15.9 | 0.15.9 |
Referencias
- https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673
- https://nvd.nist.gov/vuln/detail/CVE-2021-41151
- https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006
- https://github.com/backstage/backstage
- https://github.com/backstage/backstage/releases/tag/release-2021-10-16
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N- Debilidad (CWE)
CWE-22- Plataforma
- npm
- Paquete
@backstage/plugin-scaffolder-backend- Publicada
- 19.10.2021
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-pvv8-8fx9-h673 - 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
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Path Traversal in @backstage/plugin-scaffolder-backend esta entrada
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