Vulnerability Intelligence Report
CVE-2026-23870
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 Active Exploit Signals
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:1.53%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-502 ↗(CWE-502) Deserialization of Untrusted Data, (CWE-400) Uncontrolled Resource Consumption
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Meta | react-server-dom-turbopack | 19.0.0 <= 19.0.5 (affected), 19.1.0 <= 19.1.6 (affected), 19.2.0 <= 19.2.5 (affected) |
| Meta | react-server-dom-parcel | 19.0.0 <= 19.0.5 (affected), 19.1.0 <= 19.1.6 (affected), 19.2.0 <= 19.2.5 (affected) |
| Meta | react-server-dom-webpack | 19.0.0 <= 19.0.5 (affected), 19.1.0 <= 19.1.6 (affected), 19.2.0 <= 19.2.5 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.533%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Meta Platforms, Inc. · Vendor · USA |
| Reserved | 2026-01-16T19:49:26 |
| Published | 2026-05-06T16:24:55 |
| Last Updated | 2026-05-06T19:06:00 |
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