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8.2 High

CVE-2026-64641 Next.js is a React framework for building full-stack web applications

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.

Affected products and versions

Product Affected versions Fixed in
next.js 16.0 16.0.0 → < 16.2.11 16.2.11
next.js 13.0 13.0.0 → < 15.5.21 15.5.21

Other CVEs of next.js

The 57 CVEs of next.js →
CVE-2026-94482 Next.js is a React framework for building full-stack web applications 8.2 High CVE-2026-94484 Next.js is a React framework for building full-stack web applications 6.3 Medium CVE-2026-94485 Next.js is a React framework for building full-stack web applications 6.3 Medium CVE-2026-94483 Next.js is a React framework for building full-stack web applications 8.3 High
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