CVE-2026-23869
HIGH 7.5EPSS 1.6%
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
- Meta · react-server-dom-turbopack · react-server-dom-parcel · react-server-dom-webpack
- CVSS v3.1 CNA
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 1.55% chance of exploitation in the next 30 days, 75th percentile
- Published
- 2026-04-08
- Updated
- 2026-07-15
Proof-of-concept exploits (1)
- cybertechajju/CVE-2026-23869-Exploit9★ · 2026-04-11