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A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-d…

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

CVE-2025-55182

CISA KEV listing collected · added 5 Dec 2025 · Meta · React Server Components

Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints. Please note CVE-2025-66478 has been rejected, but it is associated with CVE-2025- 55182.

CISA source · CISA-cited reference

EPSS unknown / outside the collected prediction scope.

Observed 23 Oct 2026 16:01:26 UTC · Complete immutable risk JSON

cve-program · CVE-2025-55182

Published

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

Source published
3 Dec 2025 15:40:56 UTC
Source modified
7 Oct 2026 17:58:00 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

euvd · EUVD-2025-200983

Published

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Dec 3, 2025, 3:40:56 PM

dateUpdated: Oct 7, 2026, 5:58:00 PM

3 related source bulletins · separate from aliases

cisco-sa-react-flight-TYw32Ddb: Remote Code Execution Vulnerability in React and Next.js Frameworks: December 2025

CVE-2025-55182

NCSC-2025-0380: Kwetsbaarheden verholpen in React Server Components

CVE-2025-55182 · CVE-2025-66478

WID-SEC-W-2025-2738: Vercel Next.js und React Server Components (React2Shell): Schwachstelle ermöglicht Codeausführung

CVE-2025-55182 · CVE-2025-66478

Source published
Dec 3, 2025, 3:40:56 PM (timezone not stated)
Source modified
Oct 7, 2026, 5:58:00 PM (timezone not stated)
Observed here
9 Nov 2026 03:11:13 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

nvd · CVE-2025-55182

Published

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-502

Original publisher date fields

published: 2025-12-03T16:15:56.463

lastModified: 2026-10-18T17:10:00.110

76 source CPE criteria · context only
  • cpe:2.3:a:facebook:react:19.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:react:19.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:react:19.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:facebook:react:19.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary77:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary78:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary79:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary80:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary81:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary82:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary83:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary84:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary85:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary86:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:14.3.0:canary87:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:-:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary0:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary1:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary10:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary11:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary12:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary13:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary14:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary15:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary16:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary17:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary18:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary19:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary2:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary20:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary21:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary22:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary23:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary24:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary25:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary26:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary27:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary28:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary29:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary3:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary30:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary31:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary32:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary33:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary34:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary35:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary36:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary37:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary38:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary39:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary4:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary40:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary41:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary42:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary43:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary44:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary45:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary46:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary47:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary48:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary49:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary5:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary50:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary51:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary52:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary53:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary54:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary55:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary56:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary57:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary6:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary7:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary8:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:15.6.0:canary9:*:*:*:node.js:*:*
  • cpe:2.3:a:vercel:next.js:16.0.0:-:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
3 Dec 2025 16:15:56 UTC
Source modified
18 Oct 2026 17:10:00 UTC
Observed here
25 Oct 2026 03:17:11 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

osv · GHSA-fv66-9v8q-g76r

Published

### Impact There is an unauthenticated remote code execution vulnerability in React Server Components. We recommend upgrading immediately. The vulnerability is present in versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 of: * [react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack) * [react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel) * [react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme) ### Patches A fix was introduced in versions [19.0.1](https://github.com/facebook/react/releases/tag/v19.0.1), [19.1.2](https://github.com/facebook/react/releases/tag/v19.1.2), and [19.2.1](https://github.com/facebook/react/releases/tag/v19.2.1). If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability. ### References See the [blog post](https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components) for more information and upgrade instructions.

Source published
3 Dec 2025 19:07:39 UTC
Source modified
9 Dec 2025 17:46:07 UTC
Observed here
24 Oct 2026 13:17:17 UTC
Source terms
GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Publisher rating · CRITICAL

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 9 Nov 06:36 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current