CVE-2026-47671 — MEDIUM (5.4)

Q: How severe is CVE-2026-47671?

CVE-2026-47671 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-47671?

Check the references section above for vendor advisories and patch information. Affected products include: Nhost Cli.

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Nhost	Cli	< 1.46.0

Related Weaknesses (CWE)

CWE-306

References

https://github.com/nhost/nhost/commit/e407511627d2c2c1137a70e9ca1ca31095d23479Patch
https://github.com/nhost/nhost/pull/4302Issue TrackingPatch
https://github.com/nhost/nhost/releases/tag/[email protected]ProductRelease Notes
https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3ExploitMitigationVendor Advisory
https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3ExploitMitigationVendor Advisory

FAQ

What is CVE-2026-47671?

CVE-2026-47671 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 author...

How severe is CVE-2026-47671?

CVE-2026-47671 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-47671?

Check the references section above for vendor advisories and patch information. Affected products include: Nhost Cli.