---
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: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-524
  - CWE-694
vendor: vercel
product: next.js
affected:
  - 'next.js >= 15.0.0, < 15.5.27'
  - 'next.js >= 16.0.0, < 16.3.8'
patched:
  - next.js 16.3.8
published: '2026-10-02'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T20:17:28.907'
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
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94484.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-94484'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2545231'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-94484'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94484'
  - url: 'https://github.com/advisories/GHSA-mcj8-r9mp-w47p'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - ghsa
  - npm
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-05T20:06:50.206551Z'
scores:
  nvd: 4.8
  cna: 6.3
  vendor: 6.5
  ghsa: 4.8
epss: 0.00244
epssPercentile: 0.15568
ingestedAt: '2026-10-02T16:22:59.536Z'
aliases:
  - GHSA-mcj8-r9mp-w47p
ecosystem: npm
---

## 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.

## Affected

- `next.js >= 15.0.0, < 15.5.27`
- `next.js >= 16.0.0, < 16.3.8`

## Remediation

Upgrade past the affected range:

- `next.js 16.3.8`

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat Trusted Artifact Signer · no fix planned: Red Hat Trusted Artifact Signer, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94484.json)

## Package advisory (CVE-2026-94484)

Affected packages:

- `next >= 16.0.0, < 16.3.8`
- `next >= 15.0.0, < 15.5.27`

Patched in:

- `next 16.3.8`
- `next 15.5.27`

Source: https://github.com/advisories/GHSA-mcj8-r9mp-w47p