A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 08 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-502
Metrics ssvc

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


Wed, 08 Apr 2026 19:45:00 +0000

Type Values Removed Values Added
Description A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
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: 2026-04-08T19:56:22.791Z

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

Link: CVE-2026-23869

cve-icon Vulnrichment

Updated: 2026-04-08T19:53:45.958Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T20:16:23.003

Modified: 2026-04-08T21:26:13.410

Link: CVE-2026-23869

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses