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

Quick assessment

Affected
vercel next.js
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Next.js 是一个用于构建全栈 Web 应用的 React 框架。在版本 15.0.0 至 15.5.26，以及 16.3.7 及更早版本中，如果使用 Pages Router 并采用静态生成或增量静态再生（Incremental Static Regeneration, ISR）机制的自托管应用，可能在缓存响应条目时未能充分将其与原始路由路径绑定。攻击者可以通过构造请求，用来自不同路由的内容替换某个页面的缓存条目，从而导致受影响页面在重新验证之前向所有访问者提供错误的内容。在 Vercel 上部署的应用不受此

CVSS 6.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
vercel next.js >= 15.0.0, < 15.5.27 affected
>= 16.0.0, < 16.3.8 affected
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I. Basic Information for CVE-2026-94543

Vulnerability Information
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Vulnerability Title
Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applications
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过缓存导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vercel next.js >= 15.0.0, < 15.5.27 -

II. Public POCs for CVE-2026-94543

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III. Intelligence Information for CVE-2026-94543

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Vendor Advisories for CVE-2026-94543 (1)

Vendor Pages for CVE-2026-94543 (2)

Other References for CVE-2026-94543 (1)

Same Patch Batch · vercel · 2026-10-02 · 6 CVEs total

CVE-2026-94483 8.3 HIGH Next.js: Server-Side Request Forgery in Image Optimization
CVE-2026-94484 6.3 MEDIUM Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitu
CVE-2026-94485 6.3 MEDIUM Next.js: Information disclosure in Next.js App Router metadata image routes via dynamicPar
CVE-2026-94544 6.3 MEDIUM Next.js: Pending `use cache` fill can leak Draft Mode content into regular responses and p
CVE-2026-94486 2.3 LOW Next.js: Information disclosure in the Next.js development server's Model Context Protocol

IV. Related Vulnerabilities

Same product: next.js
Same vendor: vercel
Same weakness: CWE-524

V. Comments for CVE-2026-94543

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