CVE-2026-47671
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
Nhost CLI prior to 1.46.0 exposes a hidden config server with dummy authorization directives and permissive CORS. A local process or web page can read project secrets (e.g., JWT keys, Grafana passwords) and modify the .secrets file.
Risk Assessment
An attacker can compromise the local development environment, gaining access to sensitive data and overwriting secrets, potentially leading to production escalation.
Recommendation
Upgrade Nhost CLI to version 1.46.0 or later. Avoid running `nhost dev` in environments where untrusted code can reach localhost.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS