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6.3 Medium

CVE-2026-94543 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 15.0.0 until 15.5.27 and 16.3.8, self-hosted applications using the Pages Router with statically generated or Incremental Static Regeneration pages can key a response cache entry without sufficiently binding it to the source route. A request can replace one page's cache entry with content from a different route, causing the affected page to serve incorrect content to every visitor until revalidation. Applications deployed on Vercel are not affected. This issue is fixed in versions 15.5.27 and 16.3.8.

Affected products and versions

Product Affected versions Fixed in
next.js 16.0 16.0.0 → < 16.3.8 16.3.8
next.js 15.0 15.0.0 → < 15.5.27 15.5.27

References

Timeline

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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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