CVE-2026-23870 Details
Description
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).
A denial-of-service vulnerability exists in the React Server Components packages: react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack. This vulnerability affects versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5. The issue can be triggered by sending specially crafted HTTP requests to server function endpoints, leading to server crashes, out-of-memory exceptions, or excessive CPU usage.
Users are advised to upgrade to react-server-dom-webpack, react-server-dom-parcel, or react-server-dom-turbopack versions 19.0.6, 19.1.7, or 19.2.6.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 6, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| facebook react-server-dom-parcel | >= 19.0.0, <= 19.0.5 >= 19.1.0, <= 19.1.6 >= 19.2.0, <= 19.2.5 |
CPE
Remediation
| |
| facebook react-server-dom-turbopack | >= 19.0.0, <= 19.0.5 >= 19.1.0, <= 19.1.6 >= 19.2.0, <= 19.2.5 |
CPE
Remediation
| |
| facebook react-server-dom-webpack | >= 19.0.0, <= 19.0.5 >= 19.1.0, <= 19.1.6 >= 19.2.0, <= 19.2.5 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 12, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | New CVE Received | [email protected] |