CVE-2026-23870: high-severity vulnerability in Meta react-server-dom-webpack
Published
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46Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.5epss 1.5%
from disclosure to weapon1 day
Published on NVDMay 6
1st PoC+1d
A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Meta · react-server-dom-parcelMeta · react-server-dom-turbopackMeta · react-server-dom-webpackpublic PoCs found — 2
githubgithub.com/dwisiswant0/next-16.2.4-pocs★ 171githubgithub.com/emresandikci/nextjs-cve-2026-23870-checker★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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