CVE-2026-23870

HIGH
MEDIUM Priority: 0.11 BB Relevance: 75/100
Published: 2026-05-06 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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).

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
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

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

1.53%
Raw Score 0.015330
Percentile 74.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01533
2026-10-28
0.01533

Intelligence Sources

nvd ref →