CVE-2026-47671
Description
Nhost is an open source Firebase alternative with GraphQL. In versions of Nhost CLI prior to 1.46.0, the hidden `nhost configserver` used by `nhost dev` exposes the Mimir GraphQL API with dummy authorization directives and permissive CORS. When a developer is running the local development environment, any process that can reach the developer's localhost service, including a web page loaded from an arbitrary origin, can query the configserver for local Nhost configuration and secrets and can mutate the local `.secrets` file. This impacts developers using `nhost dev`: project admin secrets, JWT signing keys, webhook secrets, Grafana credentials, and custom environment variables can be read, and attacker-controlled secrets can be written to the local development project. Version 1.46.0 of Nhost CLI contains a fix.
How to fix
- nhost cli1.46.0 or later
- github.com/nhost/nhost0.0.0-20260518172022-e407511627d2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nhost cli | v < 1.46.0 | 1.46.0 |
| github.com/nhost/nhostGo | v < 0.0.0-20260518172022-e407511627d2 | 0.0.0-20260518172022-e407511627d2 |
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