High 7.5Published Apr 8, 2026

CVE-2026-23869A 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.…

Updated under an hour ago (Oct 27, 2026, 4:00 PM ET)

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Every CVE for Meta react-server-dom-turbopack

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-502, CWE-400, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Meta
NVD analysis: Awaiting Analysis
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Meta react-server-dom-turbopack meta:react_server_dom_turbopack (from the name)	from 19.0.0 through 19.0.4; from 19.1.0 through 19.1.5; from 19.2.0 through 19.2.4	CNA record
Meta react-server-dom-parcel meta:react_server_dom_parcel (from the name)	from 19.0.0 through 19.0.4; from 19.1.0 through 19.1.5; from 19.2.0 through 19.2.4	CNA record
Meta react-server-dom-webpack meta:react_server_dom_webpack (from the name)	from 19.0.0 through 19.0.4; from 19.1.0 through 19.1.5; from 19.2.0 through 19.2.4	CNA record
Red Hat Red Hat OpenShift AI (RHOAI) redhat:openshift_ai	Versions not stated	CISA ADP

References

References

https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg	x-refsource-confirm
https://access.redhat.com/security/cve/CVE-2026-23869
https://bugzilla.redhat.com/show_bug.cgi?id=2456663
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23869.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.