---
id: CVE-2026-94543
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, self-hosted applications using the Pages
  Router with statically generated or Incremental Static Regeneration pages can
  key a res…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: '2026-10-06'
sourceUpdated: '2026-10-06T17:17:27.960'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94543'
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-4jqv-mc3x-m676'
    label: security-advisories@github.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94543.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-94543'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2545233'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-94543'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94543'
  - url: 'https://github.com/advisories/GHSA-4jqv-mc3x-m676'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - ghsa
  - npm
epss: 0.00506
epssPercentile: 0.42999
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T16:31:43.085846Z'
scores:
  nvd: 5.3
  cna: 6.3
  vendor: 4.8
  ghsa: 5.3
ingestedAt: '2026-10-02T16:22:59.537Z'
aliases:
  - GHSA-4jqv-mc3x-m676
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, 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

- `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-2026-94543.json)

## Package advisory (CVE-2026-94543)

Affected packages:

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

Patched in:

- `next 15.5.27`
- `next 16.3.8`

Source: https://github.com/advisories/GHSA-4jqv-mc3x-m676