En resumen
- CVE-2026-106494 es una vulnerabilidad MEDIO (CVSS 4.9) que afecta a backstage (linuxfoundation), backstage/backend defaults (linuxfoundation), @backstage/backend-defaults.
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.31%, mayor que el 23.4% de las vulnerabilidades.
- Solución: actualizar a 1.54.6, 0.17.8 o posterior.
Description
Impact
An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection.
Patches
Patched in @backstage/backend-defaults version 0.17.8
NVD description
Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage url readers. An attacker with write access to a cloud storage bucket used by Backstage could craft object names that could collide with protected files in the output directory. In certain deployment configurations, this could lead to content injection. This issue is fixed in version 0.17.8.
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