VULNERABILITY INTELLIGENCE
CVE-2026-23869
CVSS score7.5 HIGH
EPSS probability1.55%
CISA KEVNot currently listed
Published2026-04-08
Last modified2026-07-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-400
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-770