CVE-2025-49005

{
  "id": "CVE-2025-49005",
  "cveTags": [],
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          "id": "CVE-2025-49005",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-07-08T14:34:09.669602Z"
        }
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 1.4,
        "exploitabilityScore": 2.2
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  "affected": [
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        {
          "vendor": "vercel",
          "product": "next.js",
          "versions": [
            {
              "status": "affected",
              "version": ">= 15.3.0, < 15.3.3"
            }
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  "published": "2025-07-03T21:15:26.787",
  "references": [
    {
      "url": "https://github.com/vercel/next.js/commit/ec202eccf05820b60c6126d6411fe16766ecc066",
      "tags": [
        "Patch"
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    {
      "url": "https://github.com/vercel/next.js/issues/79346",
      "tags": [
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        "Issue Tracking"
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      "url": "https://github.com/vercel/next.js/releases/tag/v15.3.3",
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      "tags": [
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    {
      "url": "https://vercel.com/changelog/cve-2025-49005",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Next.js is a React framework for building full-stack web applications. In Next.js App Router from 15.3.0 to before 15.3.3 and Vercel CLI from 41.4.1 to 42.2.0, a cache poisoning vulnerability was found. The issue allowed page requests for HTML content to return a React Server Component (RSC) payload instead under certain conditions. When deployed to Vercel, this would only impact the browser cache, and would not lead to the CDN being poisoned. When self-hosted and deployed externally, this could lead to cache poisoning if the CDN does not properly distinguish between RSC / HTML in the cache keys. This issue has been resolved in Next.js 15.3.3."
    },
    {
      "lang": "es",
      "value": "Next.js es un framework React para crear aplicaciones web full-stack. En Next.js App Router (versión 15.3.0) y versiones anteriores a la 15.3.3, y en Vercel CLI (versión 41.4.1) a la 42.2.0, se detectó una vulnerabilidad de envenenamiento de caché. Este problema permitía que las solicitudes de contenido HTML devolvieran un payload de React Server Component (RSC) en ciertas condiciones. Al implementarse en Vercel, esto solo afectaba a la caché del navegador y no provocaba el envenenamiento de la CDN. Al alojarse en la propia aplicación y desplegarse externamente, esto podía provocar el envenenamiento de caché si la CDN no distingue correctamente entre RSC y HTML en las claves de caché. Este problema se ha resuelto en Next.js 15.3.3."
    }
  ],
  "lastModified": "2026-06-17T09:30:39.437",
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