Detections
Analytics

React Server Components 19.0 / 19.1.0 / 19.1.1 / 19.2.0 Remote Code Execution (React2Shell)

critical Web App Scanning Plugin ID 115069

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Synopsis

React Server Components 19.0 / 19.1.0 / 19.1.1 / 19.2.0 Remote Code Execution (React2Shell)

Description

React Server Components react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack versions 19.0, 19.1.0, 19.1.1, and 19.2.0 are vulnerable to an Unauthenticated Remote Code Execution. An attacker can exploit a flaw in how React decodes payloads sent to React Server Function endpoints through specially crafted requests.

Solution

Upgrade the React Server Components to 19.0.1 or 19.1.2 or 19.2.1 or later.

See Also

https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r

https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components

Plugin Details

Severity: Critical

ID: 115069

Type: remote

Published: 12/4/2025

Updated: 12/8/2025

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-55182

CVSS v3

Risk Factor: Critical

Base Score: 10

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS Score Source: CVE-2025-55182

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/3/2025

Vulnerability Publication Date: 11/14/2025

CISA Known Exploited Vulnerability Due Dates: 12/26/2025

Reference Information

CVE: CVE-2025-55182