{"id":"CVE-2026-23870","aliases":["GHSA-rv78-f8rc-xrxh"],"url":"https://o3.security/vulnerability/CVE-2026-23870","summary":"Facebook React has a Denial of Service Vulnerability in React Server Components","details":"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).","published":"2026-05-06T17:16:22.043Z","modified":"2026-08-07T21:09:16.417040Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"react-server-dom-parcel","fixedVersion":"19.0.6"},{"ecosystem":"npm","name":"react-server-dom-turbopack","fixedVersion":"19.0.6"},{"ecosystem":"npm","name":"react-server-dom-webpack","fixedVersion":"19.0.6"},{"ecosystem":"npm","name":"react-server-dom-parcel","fixedVersion":"19.1.7"},{"ecosystem":"npm","name":"react-server-dom-turbopack","fixedVersion":"19.1.7"},{"ecosystem":"npm","name":"react-server-dom-webpack","fixedVersion":"19.1.7"},{"ecosystem":"npm","name":"react-server-dom-parcel","fixedVersion":"19.2.6"},{"ecosystem":"npm","name":"react-server-dom-turbopack","fixedVersion":"19.2.6"},{"ecosystem":"npm","name":"react-server-dom-webpack","fixedVersion":"19.2.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T21:09:16.417040Z"}}