En resumen
- CVE-2026-106495 es una vulnerabilidad MEDIO (CVSS 4.3) que afecta a @backstage/backend-defaults.
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.24%, mayor que el 15.0% de las vulnerabilidades.
- Solución: actualizar a 0.17.8 o posterior.
Description
Impact
An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced.
Patches
Patched in @backstage/backend-defaults version 0.17.8
Workarounds
Limit access to action invocation endpoints to trusted service callers until upgrading.
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 access control in backend action invocation. An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced. This issue is fixed in version 0.17.8.
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