# CVE-2025-55182: Meta React Server Components Remote Code Execution Vulnerability

> CVE-2025-55182: Meta React Server Components Remote Code Execution Vulnerability. CVSS 10.0 (CVSS 3.1), in CISA KEV, named in 2 status incident(s).

Canonical: https://rewindex.com/cve/CVE-2025-55182
Last updated: 2026-10-18T17:10:00Z

- Published: 2025-12-03 15:40 UTC · Updated: 2026-10-18 17:10 UTC · Assigner: Meta
- CVSS: 10.0 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS: 99.8%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-12-05, federal due date 2025-12-12, ransomware use: Known

## 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.

## CISA 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.

## Affected vendors and products

- Meta: react-server-dom-parcel
- Meta: react-server-dom-turbopack
- Meta: react-server-dom-webpack

## Tracked companies

- [Vercel](https://rewindex.com/company/vercel.md)

## Status incidents that name it

- 2025-12-05 14:39 UTC [Aptible: CVE-2025-55182: React server component vulnerability](https://rewindex.com/company/aptible/incidents/zn1s5n5rhts7.md) (says not affected, matched “unaffected” elsewhere in the notice): “CVE-2025-55182: React server component vulnerability This incident has been resolved. This incident has been resolved. We are aware…”
- 2025-12-03 19:37 UTC [Sanity: Security vulnerability identified with React Server Components](https://rewindex.com/company/sanity/incidents/798d1fz6xrxr.md) (says not affected, matched “not affected” elsewhere in the notice): “…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…”

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-55182)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-55182)
- [https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components](https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components)
- [https://www.facebook.com/security/advisories/cve-2025-55182](https://www.facebook.com/security/advisories/cve-2025-55182)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-55182 · Markdown: https://rewindex.com/cve/CVE-2025-55182.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-55182 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:05.388Z