SEPTEMBER 20, 2026
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Case File

CVE-2026-64641

HIGH · CVSS 7.5 EPSS 1.05% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-27 · Last synced 2026-08-26

CyberRota Analysis

AI-Generated

Next.js applications utilizing the App Router with Server Actions in versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10 are vulnerable to crafted requests that can cause excessive CPU usage, potentially leading to denial of service by blocking further request processing. Organizations running affected versions should prioritize updating to versions 15.5.21 or 16.2.11 to mitigate this high-severity vulnerability.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-64641
Severity
HIGH
CVSS
7.5
EPSS
1.05%

Original NVD Description

Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. This issue has been fixed in versions 15.5.21 and 16.2.11.

Related CVEs

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