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CVE-2026-41164

Estado: AplazadaMedia (4.4)—

nuts-node is the reference implementation of the Nuts specification. Prior to 6.2.3 and 5.4.31, the v1 access token introspection endpoint (/auth/v1/introspect_access_token) accepts any JWT signed by a key present on the node, without validating the JWT type, issuer-to-key binding, or required claims. This allows a Verifiable Presentation (VP) JWT to be replayed as an access token and receive an active: true introspection response. This vulnerability is fixed in 6.2.3 and 5.4.31.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Nuts — Nuts-nodeAI

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-41164",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-41164",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-27T17:24:32.828628Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 1.3
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "nuts-foundation",
          "product": "nuts-node",
          "versions": [
            {
              "status": "affected",
              "version": ">= 6.0.0-alpha.1, < 6.2.3"
            },
            {
              "status": "affected",
              "version": "< 5.4.31"
            }
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  "published": "2026-05-26T18:16:47.683",
  "references": [
    {
      "url": "https://github.com/nuts-foundation/nuts-node/security/advisories/GHSA-9hmg-827w-9rhj",
      "source": "security-advisories@github.com"
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-345"
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      "lang": "en",
      "value": "nuts-node is the reference implementation of the Nuts specification. Prior to 6.2.3 and 5.4.31, the v1 access token introspection endpoint (/auth/v1/introspect_access_token) accepts any JWT signed by a key present on the node, without validating the JWT type, issuer-to-key binding, or required claims. This allows a Verifiable Presentation (VP) JWT to be replayed as an access token and receive an active: true introspection response. This vulnerability is fixed in 6.2.3 and 5.4.31."
    },
    {
      "lang": "es",
      "value": "nuts-node es la implementación de referencia de la especificación Nuts. Antes de las versiones 6.2.3 y 5.4.31, el endpoint de introspección de tokens de acceso v1 (/auth/v1/introspect_access_token) acepta cualquier JWT firmado por una clave presente en el nodo, sin validar el tipo de JWT, la vinculación emisor-a-clave o las claims requeridas. Esto permite que un JWT de Presentación Verificable (VP) sea reutilizado como un token de acceso y reciba una respuesta de introspección active: true. Esta vulnerabilidad está corregida en las versiones 6.2.3 y 5.4.31."
    }
  ],
  "lastModified": "2026-07-24T11:10:00.170",
  "sourceIdentifier": "security-advisories@github.com"
}