CVE-2026-64642

HIGH

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 v3.1 Score

8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Published: 7/27/2026Modified: 7/29/2026

Related Intelligence (1)

HIGHVulnerability

NVD HIGH: CVE-2026-64642 — Next.js is a React framework for building full-stack web applications. In versio...

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.

CVE-2026-64642
NIST NVD

References (4)

https://github.com/vercel/next.js/commit/6bf4df14508ad6c0cd46af50c6051ee42f2d9151Patchhttps://github.com/vercel/next.js/pull/96014Issue TrackingPatchhttps://github.com/vercel/next.js/releases/tag/v16.2.11ProductRelease Noteshttps://github.com/vercel/next.js/security/advisories/GHSA-6gpp-xcg3-4w24Vendor Advisory