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8.2 High

CVE-2026-94482 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. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.

Affected products and versions

Product Affected versions Fixed in
next.js 16.0 16.0.0 → < 16.4.1 16.4.1
next.js 13.0 13.0.0 → < 15.5.28 15.5.28

References

Timeline

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Other CVEs of next.js

The 57 CVEs of next.js →
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 CVE-2026-94543 Next.js is a React framework for building full-stack web applications 6.3 Medium
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