VULNERABILITY INTELLIGENCE

CVE-2025-55182

CVSS score10 CRITICAL

EPSS probability99.80%

CISA KEVKnown exploited vulnerability

Published2025-12-03

Last modified2026-10-18

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

Known Exploited Vulnerability

Meta React Server Components Remote Code Execution Vulnerability

Vendor / product: Meta / React Server Components

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.

Weakness classification

nvd@nist.gov: CWE-502
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-502

Primary references

cve-assign@fb.com — Patch, Vendor Advisory
cve-assign@fb.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource