{"schemaVersion":3,"id":"GHSA-9QR9-H5GF-34MP","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Next.js is vulnerable to RCE in React flight protocol\n\nA 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, 15.6.0-canary.58, 16.1.0-canary.12+\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","dates":{"published":"2025-12-03T19:07:11.000Z","modified":"2026-09-10T03:50:31.796Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":10,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","exploitability":10,"impact":10,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"Npm","product":"next","name":"next","label":"next","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/next","purlType":"npm","versions":[{"text":"≥ 14.3.0-canary.77, < 15.0.5","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.1.0-canary.0, < 15.1.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.2.0-canary.0, < 15.2.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.3.0-canary.0, < 15.3.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.4.0-canary.0, < 15.4.8","noFixRecorded":false,"fixedIn":null},{"text":"≥ 15.5.0-canary.0, < 15.5.7","noFixRecorded":false,"fixedIn":null},{"text":"≥ 16.0.0-canary.0, < 16.0.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 14.3.0-canary.77, < 15.0.5 | ≥ 15.1.0-canary.0, < 15.1.9 | ≥ 15.2.0-canary.0, < 15.2.6 | ≥ 15.3.0-canary.0, < 15.3.6 | ≥ 15.4.0-canary.0, < 15.4.8 | ≥ 15.5.0-canary.0, < 15.5.7 | ≥ 16.0.0-canary.0, < 16.0.7","eol":{"isEol":null,"eolDate":null,"matchMethod":"purl","cycle":null,"product":{"name":"nextjs","label":"Next.js","category":"framework"}},"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r","label":"github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp","label":"github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-fmh4-wr37-44fp","label":"github.com/vitejs/vite-plugin-react/security/advisories/GHSA-fmh4-wr37-44fp","hostname":"github.com","tags":["WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55182","label":"nvd.nist.gov/vuln/detail/CVE-2025-55182","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/vercel/next.js","label":"github.com/vercel/next.js","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":["CVE-2025-66478"],"duplicates":[],"related":["CGA-3QRQ-JR55-42FV","CGA-JM9H-35RG-MFFJ","CVE-2025-71389"]},"timeline":[{"kind":"published","date":"2025-12-03T19:07:11.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-10T03:50:31.796Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T04:52:23.322Z","stale":false,"partial":false}}