---
id: CVE-2026-94484
title: Next.js is a React framework for building full-stack web applications
summary: >-
  Next.js is a React framework for building full-stack web applications. From
  15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page
  and statically generated or Incremental Static Regeneration routes can use a
  share…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-524
vendor: vercel
product: next.js
affected:
  - 'next.js >= 15.0.0, < 15.5.27'
  - 'next.js >= 16.0.0, < 16.3.8'
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T17:55:42.580'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94484'
references:
  - url: >-
      https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8
    label: security-advisories@github.com
  - url: >-
      https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52
    label: security-advisories@github.com
  - url: 'https://github.com/vercel/next.js/releases/tag/v15.5.27'
    label: security-advisories@github.com
  - url: 'https://github.com/vercel/next.js/releases/tag/v16.3.8'
    label: security-advisories@github.com
  - url: 'https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-02T16:22:59.536Z'
---

## Overview

Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page and statically generated or Incremental Static Regeneration routes can use a shared response cache key that is insufficiently scoped to the source route. A single unauthenticated crafted request can poison that cache, causing cross-user content substitution or persistent denial of service until the poisoned entry is revalidated or replaced. This issue is fixed in versions 15.5.27 and 16.3.8.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.