Allocation of Resources Without Limits or Throttling Affecting react-server-dom-webpack package, versions >=19.0.0-canary-2b036d3f1-20240327 <19.0.4>=19.1.0-canary-130095f7-20241212 <19.1.5>=19.2.0-canary-63779030-20250328 <19.2.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-REACTSERVERDOMWEBPACK-15109011
- published27 Jan 2026
- disclosed26 Jan 2026
- creditMufeed, Joachim Viide, RyotaK, Xiangwei Zhang
Introduced: 26 Jan 2026
CVE-2026-23864 (opens in a new tab)How to fix?
Upgrade react-server-dom-webpack to version 19.0.4, 19.1.5, 19.2.4 or higher.
Overview
react-server-dom-webpack is a React Server Components bindings for DOM using Webpack. This is intended to be integrated into meta-frameworks. It is not intended to be imported directly.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the decoding reply functions of React Flight protocol. An attacker can cause server crashes, out-of-memory exceptions, or excessive CPU usage by sending specially crafted HTTP requests to Server Function endpoints.
Notes:
- This issue is a result of an incomplete fix for CVE-2025-55184
- If your app’s React code does not use a server, your app is not affected by these vulnerabilities.
- If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by these vulnerabilities.