CVE-2025-32421— Next.js Race Condition to Cache Poisoning

Next.js Race Condition to Cache Poisoning

Next.js is a React framework for building full-stack web applications. Versions prior to 14.2.24 and 15.1.6 have a race-condition vulnerability. This issue only affects the Pages Router under certain misconfigurations, causing normal endpoints to serve `pageProps` data instead of standard HTML. This issue was patched in versions 15.1.6 and 14.2.24 by stripping the `x-now-route-matches` header from incoming requests. Applications hosted on Vercel's platform are not affected by this issue, as the platform does not cache responses based solely on `200 OK` status without explicit `cache-control` headers. Those who self-host Next.js deployments and are unable to upgrade immediately can mitigate this vulnerability by stripping the `x-now-route-matches` header from all incoming requests at the content development network and setting `cache-control: no-store` for all responses under risk. The maintainers of Next.js strongly recommend only caching responses with explicit cache-control headers.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

使用共享资源的并发执行不恰当同步问题(竞争条件)

Next.js 竞争条件问题漏洞

Next.js是Vercel开源的一个 React 框架。 Next.js 14.2.24之前版本和15.1.6之前版本存在竞争条件问题漏洞，该漏洞源于竞争条件，可能导致数据泄露。

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