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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/vercel/next.js/commit/6bf4df14508ad6c0cd46af50c6051ee42f2d9151	Patch
https://github.com/vercel/next.js/pull/96014	Issue Tracking Patch
https://github.com/vercel/next.js/releases/tag/v16.2.11	Product Release Notes
https://github.com/vercel/next.js/security/advisories/GHSA-6gpp-xcg3-4w24	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-07-27 18:16

Updated : 2026-07-29 14:36

NVD link : CVE-2026-64642

Mitre link : CVE-2026-64642

CVE.ORG link : CVE-2026-64642

JSON object : View

Products Affected

vercel

next.js

CWE

CWE-285

Improper Authorization

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