Resource exhaustion in React - CVE-2026-23864
Published: January 26, 2026
Vulnerability identifier: #VU122048
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-23864
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send a specially crafted HTTP request to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.
The vulnerability affects the following components:
Affected software
React
Next.js
Next.js
How to mitigate CVE-2026-23864
Install updates from vendor's website.
React - addressed in versions 19.0.4, 19.1.5, 19.2.4
Next.js - addressed in versions 15.0.8, 15.1.12, 15.2.9, 15.3.9, 15.4.11, 15.5.10, 16.0.11, 16.1.5
Next.js - addressed in versions 15.0.8, 15.1.12, 15.2.9, 15.3.9, 15.4.11, 15.5.10, 16.0.11, 16.1.5