CVE-2026-75604

CVE-2026-75604 · Next.js: Unauthenticated Remote Code Execution on windows-hosted servers

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Next.js is a React framework for building full-stack web applications. From 13.4.0 until 15.5.24 and 16.3.3, Next.js applications using Pages Router or App Router without Cache Components on Windows-hosted servers do not consistently escape backslashes in route segments before constructing incremental-cache paths. In packages/next/src/shared/lib/router/utils/escape-path-delimiters.ts and packages/next/src/server/lib/incremental-cache/file-system-cache.ts, a remote request can supply encoded Windows path separators that traverse outside the intended cache root and expose private build data, including the server-reference-manifest encryption key. Disclosure of that key can enable remote code execution in the affected application. This issue is fixed in versions 15.5.24 and 16.3.3.

CVSS 9.0 · Critique · EPSS 2,1% · Code d’exploitation public · Correctif disponible

Publication

2026-09-01T21:23:30.859Z

Mise à jour

2026-09-04T19:54:40.089Z

Pile logicielle: node

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