CVE-2026-47671 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-47671MEDIUM

Nhost CLI local configserver allows cross-origin unauthenticated read/write access to local development configuration and secrets

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  L  L  N    5.4   .0027   18.9     —

AFFECTED
  Product  Versions    Fixed
  cli      < 1.46.0 –  —

TIMELINE
  May 19  Reserved by GitHub_M
  Jul 21  EXPLOIT PUBLISHED — CVE-2026-47671 (nhost cli). Public exploit reference added.
  Jul 21  Published (CNA: GitHub_M)
  Jul 30  EXPLOIT PUBLISHED — CVE-2026-47671 (nhost cli). Public exploit reference added.

CWE-306 · CNA: GitHub_M · CVSS v3.1 · 4 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
May 19, 2026	Reserved	Reserved by GitHub_M
July 21, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47671 (nhost cli). Public exploit reference added.
July 21, 2026	Published	Published (CNA: GitHub_M)
July 30, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-47671 (nhost cli). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
nhost	cli	—	< 1.46.0	—

Weaknesses

CWE-306

References (4)

https://github.com/nhost/nhost/commit/e407511627d2c2c1137a70e9ca1ca31095d23479 [Patch]
https://github.com/nhost/nhost/pull/4302 [Issue Tracking, Patch]
https://github.com/nhost/nhost/releases/tag/cli@1.46.0 [Product, Release Notes]
https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3 [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-47671 at cve.org

Vendors: nhost

Weaknesses: CWE-306

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-47671 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.