FKIE_CVE-2026-47671

Vulnerability from fkie_nvd - Published: 2026-07-21 20:17 - Updated: 2026-07-22 16:17
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/nhost/nhost/commit/e407511627d2c2c1137a70e9ca1ca31095d23479
security-advisories@github.comhttps://github.com/nhost/nhost/pull/4302
security-advisories@github.comhttps://github.com/nhost/nhost/releases/tag/cli@1.46.0
security-advisories@github.comhttps://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "cli",
          "vendor": "nhost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.46.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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\u0027s 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."
    }
  ],
  "id": "CVE-2026-47671",
  "lastModified": "2026-07-22T16:17:25.663",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47671",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-22T15:44:01.232311Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-21T20:17:01.473",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nhost/nhost/commit/e407511627d2c2c1137a70e9ca1ca31095d23479"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nhost/nhost/pull/4302"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nhost/nhost/releases/tag/cli@1.46.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/nhost/nhost/security/advisories/GHSA-64cj-qvx5-m4f3"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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