react-server-dom: Denial of Service in Server Functions
Impact
A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage.
We recommend updating immediately.
The vulnerability exists in versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7 of:
- react-server-dom-webpack
- react-server-dom-parcel
- react-server-dom-turbopack
Patches
Fixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8.
If you are using any of the above packages please upgrade to any of the fixed versions immediately.
If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | react-server-dom-parcel | >= 19.1.0, < 19.1.9, >= 19.2.0, < 19.2.8 | 19.1.9, 19.2.8 |
| npm package | react-server-dom-turbopack | >= 19.0.0, < 19.0.8, >= 19.1.0, < 19.1.9, >= 19.2.0, < 19.2.8 | 19.0.8, 19.1.9, 19.2.8 |
| npm package | react-server-dom-webpack | >= 19.0.0, < 19.0.8, >= 19.1.0, < 19.1.9, >= 19.2.0, < 19.2.8 | 19.0.8, 19.1.9, 19.2.8 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400, CWE-770- Platform
- npm
- Package
react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack- Disclosed
- 24.07.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wx67-qw84-cm4g - CC BY 4.0
Vulnerability history: react-server-dom-parcel
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 12.2025 07.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- Critical 1
- High 6
- Medium 1
Disclosures per year
- 2025: 4
- 2026: 4
-
react-server-dom: Denial of Service in Server Functions this entry
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