Allocation of Resources Without Limits or Throttling in React - CVE-2026-23870
Published: May 6, 2026
Vulnerability identifier: #VU130269
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-23870
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
React
React
Software vendor:
Facebook Inc.
Facebook Inc.
Description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in server function endpoints when handling specially crafted HTTP requests. A remote attacker can send specially crafted HTTP requests to cause a denial of service.
This can lead to out-of-memory exceptions or excessive CPU usage.
Remediation
Install security update from vendor's website.