CVE-2026-23870
7.5 · HIGHOverview
CVE-2026-23870 is a high-severity vulnerability affecting facebook react-server-dom-parcel. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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).
Remediation
Check the references section for vendor advisories and patches from facebook. Update react-server-dom-parcel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| react-server-dom-parcel | 19.0.0 | Affected | |
| react-server-dom-turbopack | 19.0.0 | Affected | |
| react-server-dom-webpack | 19.0.0 | Affected |
Frequently Asked Questions
What is CVE-2026-23870?
CVE-2026-23870 is a high-severity vulnerability affecting facebook react-server-dom-parcel. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-23870?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-23870?
Check the references section for vendor advisories and patches from facebook. Update react-server-dom-parcel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-23870?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-23870 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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