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Publish Advisories
GHSA-9qr9-h5gf-34mp GHSA-fmh4-wr37-44fp GHSA-fv66-9v8q-g76r
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‎advisories/github-reviewed/2025/12/GHSA-9qr9-h5gf-34mp/GHSA-9qr9-h5gf-34mp.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-9qr9-h5gf-34mp",
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"modified": "2025-12-03T19:07:11Z",
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"published": "2025-12-03T19:07:11Z",
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"aliases": [
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"CVE-2025-66478"
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],
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"summary": "Next.js is vulnerable to RCE in React flight protocol",
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"details": "A vulnerability affects certain React packages<sup>1</sup> for versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as [CVE-2025-55182](https://www.cve.org/CVERecord?id=CVE-2025-55182). \n\nFixed in:\nReact: 19.0.1, 19.1.2, 19.2.1\nNext.js: 15.0.5, 15.1.9, 15.2.6, 15.3.6, 15.4.8, 15.5.7, 16.0.7\n\nThe vulnerability also affects experimental canary releases starting with 14.3.0-canary.77. Users on any of the 14.3 canary builds should either downgrade to a 14.x stable release or 14.3.0-canary.76.\n\nAll users of stable 15.x or 16.x Next.js versions should upgrade to a patched, stable version immediately.\n\n<sup>1</sup> The affected React packages are:\n- react-server-dom-parcel\n- react-server-dom-turbopack\n- react-server-dom-webpack",
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"severity": [
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{
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"type": "CVSS_V3",
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
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}
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],
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"affected": [
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "14.3.0-canary.77"
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},
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{
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"fixed": "15.0.5"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "15.1.1-canary.0"
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},
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{
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"fixed": "15.1.9"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "15.2.0-canary.0"
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},
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{
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"fixed": "15.2.6"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "15.3.0-canary.0"
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},
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{
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"fixed": "15.3.6"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "15.4.0-canary.0"
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},
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{
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"fixed": "15.4.8"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "15.5.1-canary.0"
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},
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{
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"fixed": "15.5.7"
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}
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]
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}
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]
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},
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{
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"package": {
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"ecosystem": "npm",
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"name": "next"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "16.0.0-canary.0"
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},
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{
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"fixed": "16.0.7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp"
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},
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{
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"type": "ADVISORY",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66478"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/vercel/next.js"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-502"
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],
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"severity": "CRITICAL",
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"github_reviewed": true,
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"github_reviewed_at": "2025-12-03T19:07:11Z",
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"nvd_published_at": "2025-12-03T18:15:47Z"
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}
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}

‎advisories/github-reviewed/2025/12/GHSA-fmh4-wr37-44fp/GHSA-fmh4-wr37-44fp.json‎

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{
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"schema_version": "1.4.0",
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"id": "GHSA-fmh4-wr37-44fp",
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"modified": "2025-12-03T19:07:52Z",
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"published": "2025-12-03T19:07:52Z",
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"aliases": [],
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"summary": "React Server Components are Vulnerable to RCE",
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"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's 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/[email protected]` or later.\n\n### Workarounds\n\nApplications not using server-side React or React Server Components are unaffected.",
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"severity": [],
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"affected": [
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{
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"package": {
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"ecosystem": "npm",
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"name": "@vitejs/plugin-rsc"
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},
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"ranges": [
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{
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"type": "ECOSYSTEM",
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"events": [
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{
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"introduced": "0"
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},
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{
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"fixed": "0.5.3"
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}
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]
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}
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],
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"database_specific": {
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"last_known_affected_version_range": "<= 0.5.2"
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}
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}
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],
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"references": [
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{
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"type": "WEB",
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"url": "https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r"
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},
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{
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"type": "WEB",
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"url": "https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-fmh4-wr37-44fp"
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},
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{
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"type": "PACKAGE",
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"url": "https://github.com/vitejs/vite-plugin-react"
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},
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{
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"type": "WEB",
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"url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"
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}
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],
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"database_specific": {
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"cwe_ids": [
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"CWE-502"
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],
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"severity": "CRITICAL",
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"github_reviewed": true,
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"github_reviewed_at": "2025-12-03T19:07:52Z",
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"nvd_published_at": null
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}
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}

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