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CVE-2026-23870

Quick assessment

Affected
Meta react-server-dom-turbopack
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

react-server-dom-parcel是Meta开源的一个软件打包工具库。 Meta多款产品存在安全漏洞，该漏洞源于发送特制HTTP请求到服务器功能端点，可能导致服务器崩溃、内存不足异常或CPU过度使用。以下产品和版本受到影响：react-server-dom-webpack、react-server-dom-parcel和react-server-dom-turbopack 19.0.0版本至19.0.5版本、19.1.0版本至19.1.6版本和19.2.0版本至19.2.5版本。

CVSS 7.5 · High EPSS 1.53% · P74

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 9

VendorProduct Version RangeStatus
Meta react-server-dom-parcel 19.0.0≤ 19.0.5 affected
19.1.0≤ 19.1.6 affected
19.2.0≤ 19.2.5 affected
Meta react-server-dom-turbopack 19.0.0≤ 19.0.5 affected
19.1.0≤ 19.1.6 affected
19.2.0≤ 19.2.5 affected
Meta react-server-dom-webpack 19.0.0≤ 19.0.5 affected
19.1.0≤ 19.1.6 affected
19.2.0≤ 19.2.5 affected
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I. Basic Information for CVE-2026-23870

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Meta多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
react-server-dom-parcel是Meta开源的一个软件打包工具库。 Meta多款产品存在安全漏洞，该漏洞源于发送特制HTTP请求到服务器功能端点，可能导致服务器崩溃、内存不足异常或CPU过度使用。以下产品和版本受到影响：react-server-dom-webpack、react-server-dom-parcel和react-server-dom-turbopack 19.0.0版本至19.0.5版本、19.1.0版本至19.1.6版本和19.2.0版本至19.2.5版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Meta react-server-dom-turbopack 19.0.0 ~ 19.0.5 -
Meta react-server-dom-parcel 19.0.0 ~ 19.0.5 -
Meta react-server-dom-webpack 19.0.0 ~ 19.0.5 -

II. Public POCs for CVE-2026-23870

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III. Intelligence Information for CVE-2026-23870

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Vendor Advisories for CVE-2026-23870 (1)

IV. Related Vulnerabilities

Same product: react-server-dom-turbopack
Same vendor: Meta

V. Comments for CVE-2026-23870

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