GitHub Advisoryadvisory · npm

GHSA-wx67-qw84-cm4g react-server-dom: Denial of Service in Server Functions

HIGH Published 2026-07-24 Modified 2026-07-24 Official page ↗
Aliases
CVE-2026-44907
Ecosystem
npm
Packages
react-server-dom-webpack, react-server-dom-turbopack, react-server-dom-parcel
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400, CWE-770
Reviewed
2026-07-24

Affected packages

• npm react-server-dom-webpack: >= 19.0.0, < 19.0.8 → fixed in 19.0.8 • npm react-server-dom-turbopack: >= 19.0.0, < 19.0.8 → fixed in 19.0.8 • npm react-server-dom-turbopack: >= 19.1.0, < 19.1.9 → fixed in 19.1.9 • npm react-server-dom-parcel: >= 19.1.0, < 19.1.9 → fixed in 19.1.9 • npm react-server-dom-webpack: >= 19.1.0, < 19.1.9 → fixed in 19.1.9 • npm react-server-dom-turbopack: >= 19.2.0, < 19.2.8 → fixed in 19.2.8 • npm react-server-dom-parcel: >= 19.2.0, < 19.2.8 → fixed in 19.2.8 • npm react-server-dom-webpack: >= 19.2.0, < 19.2.8 → fixed in 19.2.8

Description

Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7 of: • react-server-dom-webpack • react-server-dom-parcel • react-server-dom-turbopack Patches Fixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.

Related

Alias · CVE (1)

  • CVE-2026-44907 A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could… vulnerability

Weakness · CWE (2)

  • CWE-400 Uncontrolled Resource Consumption weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References