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).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00423.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Meta react-server-dom-turbopack unaffected
Version Status Constraints
19.0.0 affected ≤ 19.0.5
19.1.0 affected ≤ 19.1.6
19.2.0 affected ≤ 19.2.5
Meta react-server-dom-parcel unaffected
Version Status Constraints
19.0.0 affected ≤ 19.0.5
19.1.0 affected ≤ 19.1.6
19.2.0 affected ≤ 19.2.5
Meta react-server-dom-webpack unaffected
Version Status Constraints
19.0.0 affected ≤ 19.0.5
19.1.0 affected ≤ 19.1.6
19.2.0 affected ≤ 19.2.5

No data.

No data.

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Vendors Products
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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rv78-f8rc-xrxh Facebook React has a Denial of Service Vulnerability in React Server Components
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh cve-icon cve-icon
History

Thu, 07 May 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Facebook
Facebook react-server-dom-parcel
Facebook react-server-dom-turbopack
Facebook react-server-dom-webpack
Vendors & Products Facebook
Facebook react-server-dom-parcel
Facebook react-server-dom-turbopack
Facebook react-server-dom-webpack

Wed, 06 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 06 May 2026 17:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted HTTP Requests in Meta React Server DOM Packages
Weaknesses CWE-770

Wed, 06 May 2026 16:45:00 +0000

Type Values Removed Values Added
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).
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Meta

Published:

Updated: 2026-05-06T19:06:00.435Z

Reserved: 2026-01-16T19:49:26.309Z

Link: CVE-2026-23870

cve-icon Vulnrichment

Updated: 2026-05-06T19:05:53.869Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-06T17:16:22.043

Modified: 2026-05-07T14:52:27.380

Link: CVE-2026-23870

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T18:15:34Z

Weaknesses