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.
Metrics
Affected Vendors & Products
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History
Thu, 23 Jul 2026 05:45:00 +0000
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Nhost
Nhost cli |
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| Vendors & Products |
Nhost
Nhost cli |
Wed, 22 Jul 2026 16:30:00 +0000
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| Metrics |
ssvc
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Tue, 21 Jul 2026 20:15:00 +0000
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| 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. | |
| Title | Nhost CLI local configserver allows cross-origin unauthenticated read/write access to local development configuration and secrets | |
| Weaknesses | CWE-306 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-07-21T20:00:53.145Z
Updated: 2026-07-22T15:44:11.174Z
Reserved: 2026-05-19T21:10:38.797Z
Link: CVE-2026-47671
Updated: 2026-07-22T15:43:51.631Z
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