CVE-2026-23864High· 7.5▾ TwilightMultiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending s…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.5 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
2.5%
Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack.
The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code.
Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.
react >= 19.0.0, < 19.0.4react >= 19.1.0, < 19.1.5react >= 19.2.0, < 19.2.4Upgrade past the affected range:
react 19.2.4Connected by shared product, vendor, weakness, or advisory.
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