HIGHCVSS 8.3

CVE-2026-64642

CVE-2026-64642 updated by NVD

Published: 2026-07-22
Modified: 2026-07-31
Sources: github-advisory, nvd

Summary

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.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
npm	next	—	16.2.11

Remediation: Upgrade to 16.2.11 or later.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-64642

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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