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CVE-2026-23864

Quick assessment

Affected
Meta react-server-dom-webpack
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.

Meta React Server Components是美国Meta公司的一系列组件。 Meta React Server Components存在安全漏洞，该漏洞源于发送特制HTTP请求可能触发服务器崩溃、内存耗尽或CPU使用率过高。

AI Predicted 7.5 Difficulty: Easy EPSS 2.39% · P83

Affected Version Matrix 9

VendorProduct Version RangeStatus
Meta react-server-dom-parcel 19.0.0< 19.0.4 affected
19.1.0< 19.1.5 affected
19.2.0< 19.2.4 affected
Meta react-server-dom-turbopack 19.0.0< 19.0.4 affected
19.1.0< 19.1.5 affected
19.2.0< 19.2.4 affected
Meta react-server-dom-webpack 19.0.0< 19.0.4 affected
19.1.0< 19.1.5 affected
19.2.0< 19.2.4 affected
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I. Basic Information for CVE-2026-23864

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Meta React Server Components 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meta React Server Components是美国Meta公司的一系列组件。 Meta React Server Components存在安全漏洞，该漏洞源于发送特制HTTP请求可能触发服务器崩溃、内存耗尽或CPU使用率过高。
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-webpack 19.0.0 ~ 19.0.4 -
Meta react-server-dom-turbopack 19.0.0 ~ 19.0.4 -
Meta react-server-dom-parcel 19.0.0 ~ 19.0.4 -

II. Public POCs for CVE-2026-23864

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-23864

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Vendor Advisories for CVE-2026-23864 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-23864

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