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.

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 0.01209.

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-webpack unaffected
Version Status Constraints
19.0.0 affected < 19.0.4
19.1.0 affected < 19.1.5
19.2.0 affected < 19.2.4
Meta react-server-dom-turbopack unaffected
Version Status Constraints
19.0.0 affected < 19.0.4
19.1.0 affected < 19.1.5
19.2.0 affected < 19.2.4
Meta react-server-dom-parcel unaffected
Version Status Constraints
19.0.0 affected < 19.0.4
19.1.0 affected < 19.1.5
19.2.0 affected < 19.2.4

Configuration 1 [-]

OR cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*
cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*
cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
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React-server-dom-webpack Subscribe

Project Subscriptions

Vendors Products
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React-server-dom-turbopack Subscribe
React-server-dom-webpack Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-83fc-fqcc-2hmg React Server Components have multiple Denial of Service Vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.facebook.com/security/advisories/cve-2026-23864 cve-icon cve-icon
History

Fri, 13 Feb 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Facebook react
CPEs cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*
Vendors & Products Facebook react

Tue, 27 Jan 2026 09:15:00 +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

Mon, 26 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-502
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'}

ssvc

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

Mon, 26 Jan 2026 19:30:00 +0000

Type Values Removed Values Added
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.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Meta

Published:

Updated: 2026-01-26T20:26:45.709Z

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

Link: CVE-2026-23864

cve-icon Vulnrichment

Updated: 2026-01-26T20:25:06.606Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-26T20:16:16.773

Modified: 2026-02-13T15:23:05.013

Link: CVE-2026-23864

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-27T09:03:35Z

Weaknesses