{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.5.2"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@vitejs/plugin-rsc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-03T19:07:52Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Summary\n\n`@vitejs/plugin-rsc` vendors `react-server-dom-webpack`, which contained an unauthenticated remote code execution vulnerability in versions prior to 19.0.1, 19.1.2, and 19.2.1. See details in React repository\u0027s advisory https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r\n\n### Impact\n\nApplications using affected versions of `@vitejs/plugin-rsc` are vulnerable to unauthenticated remote code execution through deserialization of untrusted data. An attacker can execute arbitrary code remotely without authentication, affecting confidentiality, integrity, and availability.\n\n### Recommendations\n\nUpgrade immediately to `@vitejs/plugin-rsc@0.5.3` or later.\n\n### Workarounds\n\nApplications not using server-side React or React Server Components are unaffected.",
  "id": "GHSA-fmh4-wr37-44fp",
  "modified": "2025-12-11T18:20:18Z",
  "published": "2025-12-03T19:07:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-fmh4-wr37-44fp"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite-plugin-react"
    },
    {
      "type": "WEB",
      "url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "React Server Components are Vulnerable to RCE"
}