Vulnerabilities CVE-2025-55182

CVE-2025-55182

Critical

Open

KEV

TLP:CLEAR

Meta React Server Components Remote Code Execution Vulnerability

NVD CVE.org

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Description

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.

Details

CVSS Score: 10.0
EPSS Score ⓘ: 99.62%

99.9th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Confidence: 100%
Published: Dec 3, 2025
Last Modified: Aug 4, 2026
CISA KEV
Date Added: Dec 5, 2025
Patch Due: Dec 12, 2025
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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