Web Application Vulnerabilities Runtime SCA Findings
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Next.js Improper Authorization Vulnerability (CVE-2026-64642) - Vulnerability Database

Next.js Improper Authorization Vulnerability (CVE-2026-64642)

Description

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.

References

CVE-2026-64642

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Severity

High

Classification

CVE-2026-64642
CWE-285
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Tags

Missing Update
Known Vulnerabilities