---
id: CVE-2025-67779
title: >-
  It was found that the fix addressing CVE-2025-55184 in React Server Components
  was incomplete and does not prevent a denial of service attack in a specific
  case
summary: >-
  It was found that the fix addressing CVE-2025-55184 in React Server Components
  was incomplete and does not prevent a denial of service attack in a specific
  case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected,
  al…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-502
  - CWE-400
  - CWE-502
vendor: facebook
product: react
affected:
  - react = 19.0.2
  - react = 19.1.3
  - react = 19.2.2
  - 'next.js >= 13.3.0, < 14.2.35'
  - 'next.js >= 15.0.0, < 15.0.7'
  - 'next.js >= 15.1.0, < 15.1.11'
  - 'next.js >= 15.2.0, < 15.2.8'
  - 'next.js >= 15.3.0, < 15.3.8'
  - 'next.js >= 15.4.0, < 15.4.10'
  - 'next.js >= 15.5.0, < 15.5.9'
  - 'next.js >= 16.0.0, < 16.0.10'
  - next.js = 15.6.0
  - next.js = 16.1.0
patched:
  - next.js 16.0.10
published: '2025-12-12'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-67779'
references:
  - url: >-
      https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
    label: cve-assign@fb.com
  - url: 'https://www.facebook.com/security/advisories/cve-2025-67779'
    label: cve-assign@fb.com
tags:
  - nvd
epss: 0.19986
epssPercentile: 0.97375
ingestedAt: '2026-10-07T20:46:46.869Z'
---

## Overview

It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

## Affected

- `react = 19.0.2`
- `react = 19.1.3`
- `react = 19.2.2`
- `next.js >= 13.3.0, < 14.2.35`
- `next.js >= 15.0.0, < 15.0.7`
- `next.js >= 15.1.0, < 15.1.11`
- `next.js >= 15.2.0, < 15.2.8`
- `next.js >= 15.3.0, < 15.3.8`
- `next.js >= 15.4.0, < 15.4.10`
- `next.js >= 15.5.0, < 15.5.9`
- `next.js >= 16.0.0, < 16.0.10`
- `next.js = 15.6.0`
- `next.js = 16.1.0`

## Remediation

Upgrade past the affected range:

- `next.js 16.0.10`