Vulnerability Details CVE-2026-64642
Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue has been fixed in version 16.2.11.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 57.7%
CVSS Severity
CVSS v3 Score 8.2
Products affected by CVE-2026-64642
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cpe:2.3:a:vercel:next.js:16.0.0
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cpe:2.3:a:vercel:next.js:16.0.1
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cpe:2.3:a:vercel:next.js:16.0.10
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cpe:2.3:a:vercel:next.js:16.0.2
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cpe:2.3:a:vercel:next.js:16.0.3
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cpe:2.3:a:vercel:next.js:16.0.4
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cpe:2.3:a:vercel:next.js:16.0.5
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cpe:2.3:a:vercel:next.js:16.0.6
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cpe:2.3:a:vercel:next.js:16.0.7
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cpe:2.3:a:vercel:next.js:16.0.8
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cpe:2.3:a:vercel:next.js:16.0.9
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cpe:2.3:a:vercel:next.js:16.1.0
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cpe:2.3:a:vercel:next.js:16.1.1
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cpe:2.3:a:vercel:next.js:16.1.2
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cpe:2.3:a:vercel:next.js:16.1.3
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cpe:2.3:a:vercel:next.js:16.1.4
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cpe:2.3:a:vercel:next.js:16.1.5
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cpe:2.3:a:vercel:next.js:16.1.6
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cpe:2.3:a:vercel:next.js:16.1.7
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cpe:2.3:a:vercel:next.js:16.2.0
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cpe:2.3:a:vercel:next.js:16.2.10
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cpe:2.3:a:vercel:next.js:16.2.2
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cpe:2.3:a:vercel:next.js:16.2.3
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cpe:2.3:a:vercel:next.js:16.2.4
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cpe:2.3:a:vercel:next.js:16.2.5
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cpe:2.3:a:vercel:next.js:16.2.6
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cpe:2.3:a:vercel:next.js:16.2.7
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cpe:2.3:a:vercel:next.js:16.2.8
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cpe:2.3:a:vercel:next.js:16.2.9