GHSA-R2FC-CCR8-96C4

Vulnerability from github – Published: 2025-07-03 20:30 – Updated: 2025-07-03 21:49
VLAI?
Summary
Next.js has a Cache poisoning vulnerability due to omission of the Vary header
Details

Summary

A cache poisoning issue in Next.js App Router >=15.3.0 and < 15.3.3 may have allowed RSC payloads to be cached and served in place of HTML, under specific conditions involving middleware and redirects. This issue has been fixed in Next.js 15.3.3.

Users on affected versions should upgrade immediately and redeploy to ensure proper caching behavior.

More details: CVE-2025-49005

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.3.0"
            },
            {
              "fixed": "15.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49005"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-03T20:30:18Z",
    "nvd_published_at": "2025-07-03T21:15:26Z",
    "severity": "LOW"
  },
  "details": "### Summary\n\nA cache poisoning issue in **Next.js App Router \u003e=15.3.0 and \u003c 15.3.3** may have allowed RSC payloads to be cached and served in place of HTML, under specific conditions involving middleware and redirects. This issue has been fixed in **Next.js 15.3.3**.\n\nUsers on affected versions should **upgrade immediately** and **redeploy** to ensure proper caching behavior.\n\nMore details: [CVE-2025-49005](https://vercel.com/changelog/cve-2025-49005)",
  "id": "GHSA-r2fc-ccr8-96c4",
  "modified": "2025-07-03T21:49:00Z",
  "published": "2025-07-03T20:30:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-r2fc-ccr8-96c4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49005"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/issues/79346"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/pull/79939"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/commit/ec202eccf05820b60c6126d6411fe16766ecc066"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vercel/next.js"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/releases/tag/v15.3.3"
    },
    {
      "type": "WEB",
      "url": "https://vercel.com/changelog/cve-2025-49005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Next.js has a Cache poisoning vulnerability due to omission of the Vary header"
}


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