CVE-2026-23870
Published:May 06, 2026
Updated:May 16, 2026
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).
Affected Packages
https://github.com/facebook/react.git (GITHUB):
Affected version(s) >=v19.1.0 <v19.1.7Fix Suggestion:
Update to version v19.1.7https://github.com/facebook/react.git (GITHUB):
Affected version(s) >=v19.2.0 <v19.2.6Fix Suggestion:
Update to version v19.2.6https://github.com/facebook/react.git (GITHUB):
Affected version(s) >=v19.0.0 <v19.0.6Fix Suggestion:
Update to version v19.0.6react-server-dom-parcel (NPM):
Affected version(s) >=19.1.0 <19.1.7Fix Suggestion:
Update to version 19.1.7react-server-dom-turbopack (NPM):
Affected version(s) >=19.1.0 <19.1.7Fix Suggestion:
Update to version 19.1.7react-server-dom-parcel (NPM):
Affected version(s) >=19.2.0 <19.2.6Fix Suggestion:
Update to version 19.2.6react-server-dom-webpack (NPM):
Affected version(s) >=19.1.0 <19.1.7Fix Suggestion:
Update to version 19.1.7react-server-dom-turbopack (NPM):
Affected version(s) >=19.0.0 <19.0.6Fix Suggestion:
Update to version 19.0.6react-server-dom-webpack (NPM):
Affected version(s) >=19.2.0 <19.2.6Fix Suggestion:
Update to version 19.2.6react-server-dom-webpack (NPM):
Affected version(s) >=19.0.0 <19.0.6Fix Suggestion:
Update to version 19.0.6react-server-dom-turbopack (NPM):
Affected version(s) >=19.2.0 <19.2.6Fix Suggestion:
Update to version 19.2.6Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.69