CVE-2025-55182: Meta React Server Components Remote Code Execution Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Meta React Server Components Remote Code Execution Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
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.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
- · No impact listed · says not affected (notice says “unaffected”)
“CVE-2025-55182: React server component vulnerability This incident has been resolved. This incident has been resolved. We are aware…”
- · No impact listed · says not affected (notice says “not affected”)
“…recommended steps outlined here: https://vercel.com/changelog/cve-2025-55182#resolution. A security vulnerability (CVE-2025-55182) affecting React Server Components (RSC) and several related packages including Next.js was disclosed today by the…”
Affected vendors and products
Meta: react-server-dom-parcelMeta: react-server-dom-turbopackMeta: react-server-dom-webpack
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-compo… (opens in new tab)
- www.facebook.com/security/advisories/cve-2025-55182 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)