CVE-2026-23870CWE-400denial-of-service

CVE-2026-23870

High · published May 6, 2026

CVSS v3.1
7.5
EPSS
2%
Percentile
74.6
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01533 · 74.6th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-05-06T21:16Z
Affected products (9)
ProductVersionsFixed in
facebook/react-server-dom-parcel≥ 19.0.0, ≤ 19.0.5—
facebook/react-server-dom-parcel≥ 19.1.0, ≤ 19.1.6—
facebook/react-server-dom-parcel≥ 19.2.0, ≤ 19.2.5—
facebook/react-server-dom-turbopack≥ 19.0.0, ≤ 19.0.5—
facebook/react-server-dom-turbopack≥ 19.1.0, ≤ 19.1.6—
facebook/react-server-dom-turbopack≥ 19.2.0, ≤ 19.2.5—
facebook/react-server-dom-webpack≥ 19.0.0, ≤ 19.0.5—
facebook/react-server-dom-webpack≥ 19.1.0, ≤ 19.1.6—
facebook/react-server-dom-webpack≥ 19.2.0, ≤ 19.2.5—
References (1)
EPSS history
Timeline
  • 06 MAY 16:24Z
    A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server…
    cvelistv5