CVE-2026-72859
CVE-2026-72859 · Budibase 3.39.4 before 3.40.0 Authorization Regression via S3 Presigned URL
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Budibase versions 3.39.4 before 3.40.0 contain an authorization regression in the S3 attachment upload endpoint that allows BASIC users to obtain S3 PutObject presigned URLs by sending POST requests to the attachments endpoint. The route was changed from a BUILDER permission check to a TABLE/WRITE check, which BASIC users hold by default. Attackers can specify arbitrary S3 buckets in the request body to generate presigned URLs for writing to any bucket accessible by the stored IAM credentials, enabling unauthorized file uploads.
CVSS 8.3 · Alta · EPSS 0,2% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
server
- Versiones
- ≥ 3.39.4, < 3.40.0: Afectada (semver)
- 3.40.0: No afectada (semver)
Actualiza a 3.40.0
@budibase/server npm
- Intervalos de versiones afectados
- SEMVER: ≤ 3.38.1
Sin corrección publicada