# CVE-2026-94543: Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applications

> CVE-2026-94543: Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applications. CVSS 5.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-94543
Last updated: 2026-10-06T17:17:27Z

- Published: 2026-10-02 15:16 UTC · Updated: 2026-10-06 17:17 UTC · Assigner: GitHub\_M
- CVSS: 5.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS: 0.51%, 43th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-524

## 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 vendors and products

- vercel: next.js

## Tracked companies

- [Vercel](https://rewindex.com/company/vercel.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-94543)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-94543)
- [https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8](https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8)
- [https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52](https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52)
- [https://github.com/vercel/next.js/releases/tag/v15.5.27](https://github.com/vercel/next.js/releases/tag/v15.5.27)
- [https://github.com/vercel/next.js/releases/tag/v16.3.8](https://github.com/vercel/next.js/releases/tag/v16.3.8)
- [https://github.com/vercel/next.js/security/advisories/GHSA-4jqv-mc3x-m676](https://github.com/vercel/next.js/security/advisories/GHSA-4jqv-mc3x-m676)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-94543 · Markdown: https://rewindex.com/cve/CVE-2026-94543.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-94543 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:55.679Z