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Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applications

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-94543

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-94543

next.js

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "vercel",
    "product": "next.js",
    "versions": [
      {
        "status": "affected",
        "version": ">= 15.0.0, < 15.5.27"
      },
      {
        "status": "affected",
        "version": ">= 16.0.0, < 16.3.8"
      }
    ]
  }
]
Related CVEs
CVE-2026-94543

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#9386 · Revision 1
Added to Heist Feed
Publisher date
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