HIGH SeverityCVSS 3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE-2026-23869

Last updated Apr 08, 2026 · Published Apr 08, 2026

Description

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.

Affected products

1 listed

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

Mappings

CWE

CWE-400; CWE-502

CAPEC

None listed.