Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.6.
History

Thu, 14 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 14 May 2026 14:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

Wed, 13 May 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Vercel
Vercel next.js
Vendors & Products Vercel
Vercel next.js

Wed, 13 May 2026 18:00:00 +0000

Type Values Removed Values Added
Description Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.6.
Title Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes
Weaknesses CWE-288
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-05-13T17:11:07.275Z

Updated: 2026-05-13T18:39:29.674Z

Reserved: 2026-05-08T19:27:26.699Z

Link: CVE-2026-45109

cve-icon Vulnrichment

Updated: 2026-05-13T18:39:25.285Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-13T18:16:19.283

Modified: 2026-05-14T14:14:06.463

Link: CVE-2026-45109

cve-icon Redhat

No data.