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.
References
Link | Resource |
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https://github.com/vercel/next.js/security/advisories/GHSA-qpjv-v59x-3qc4 | Vendor Advisory |
https://vercel.com/changelog/cve-2025-32421 | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
10 Sep 2025, 15:16
Type | Values Removed | Values Added |
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References | () https://github.com/vercel/next.js/security/advisories/GHSA-qpjv-v59x-3qc4 - Vendor Advisory | |
References | () https://vercel.com/changelog/cve-2025-32421 - Vendor Advisory | |
CPE | cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* | |
First Time |
Vercel
Vercel next.js |
16 May 2025, 14:43
Type | Values Removed | Values Added |
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Summary |
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14 May 2025, 23:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2025-05-14 23:15
Updated : 2025-09-10 15:16
NVD link : CVE-2025-32421
Mitre link : CVE-2025-32421
CVE.ORG link : CVE-2025-32421
JSON object : View
Products Affected
vercel
- next.js
CWE
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')