{
  "affected": [
    {
      "affectedData": [
        {
          "product": "next.js",
          "vendor": "vercel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 14.2.24"
            },
            {
              "status": "affected",
              "version": "\u003e= 15.0.0, \u003c 15.1.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "4053D4E0-5AB3-425D-AFEE-3F99985BE086",
              "versionEndExcluding": "14.2.24",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "BE1D1266-DE52-4805-9133-402B4D0BE947",
              "versionEndExcluding": "15.1.6",
              "versionStartIncluding": "15.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Next.js is a React framework for building full-stack web applications. Versions prior to 14.2.24 and 15.1.6 have a race-condition vulnerability. This issue only affects the Pages Router under certain misconfigurations, causing normal endpoints to serve `pageProps` data instead of standard HTML. This issue was patched in versions 15.1.6 and 14.2.24 by stripping the `x-now-route-matches` header from incoming requests. Applications hosted on Vercel\u0027s platform are not affected by this issue, as the platform does not cache responses based solely on `200 OK` status without explicit `cache-control` headers. Those who self-host Next.js deployments and are unable to upgrade immediately can mitigate this vulnerability by stripping the `x-now-route-matches` header from all incoming requests at the content development network and setting `cache-control: no-store` for all responses under risk. The maintainers of Next.js strongly recommend only caching responses with explicit cache-control headers."
    },
    {
      "lang": "es",
      "value": "Next.js es un framework de React para crear aplicaciones web full-stack. Las versiones anteriores a la 14.2.24 y la 15.1.6 presentan una vulnerabilidad de condici\u00f3n de ejecuci\u00f3n. Este problema solo afecta a Pages Router con ciertas configuraciones incorrectas, lo que provoca que los endpoints normales muestren datos `pageProps` en lugar de HTML est\u00e1ndar. Este problema se solucion\u00f3 en las versiones 15.1.6 y 14.2.24 eliminando el encabezado `x-now-route-matches` de las solicitudes entrantes. Las aplicaciones alojadas en la plataforma Vercel no se ven afectadas, ya que la plataforma no almacena en cach\u00e9 las respuestas bas\u00e1ndose \u00fanicamente en el estado `200 OK` sin encabezados `cache-control` expl\u00edcitos. Quienes alojan implementaciones de Next.js en sus propias instalaciones y no pueden actualizar inmediatamente pueden mitigar esta vulnerabilidad eliminando el encabezado `x-now-route-matches` de todas las solicitudes entrantes en la red de desarrollo de contenido y configurando `cache-control: no-store` para todas las respuestas en riesgo. Los mantenedores de Next.js recomiendan encarecidamente almacenar en cach\u00e9 \u00fanicamente las respuestas con encabezados de control de cach\u00e9 expl\u00edcitos."
    }
  ],
  "id": "CVE-2025-32421",
  "lastModified": "2026-06-17T09:11:58.080",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-32421",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-15T15:40:39.864352Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-05-14T23:15:47.870",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-qpjv-v59x-3qc4"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://vercel.com/changelog/cve-2025-32421"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}