CVE-2026-45109

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/vercel/next.js/security/advisories/GHSA-26hh-7cqf-hhc6	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:34608
https://access.redhat.com/errata/RHSA-2026:37272
https://access.redhat.com/errata/RHSA-2026:40974
https://access.redhat.com/errata/RHSA-2026:54435
https://access.redhat.com/security/cve/CVE-2026-45109
https://bugzilla.redhat.com/show_bug.cgi?id=2477190
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45109.json

Configurations

Configuration 1 (hide)

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

History

26 Oct 2026, 14:10

Type	Values Removed	Values Added
Summary		(es) Next.js es un framework de React para construir aplicaciones web full-stack. Desde la versión 15.2.0 hasta antes de las versiones 15.5.18 y 16.2.6, se descubrió que la corrección para CVE-2026-44575 no se aplicaba a middleware.ts con Turbopack. Esta vulnerabilidad está corregida en las versiones 15.5.18 y 16.2.6.

Information

Published : 2026-05-13 18:16

Updated : 2026-10-26 14:10

NVD link : CVE-2026-45109

Mitre link : CVE-2026-45109

CVE.ORG link : CVE-2026-45109

JSON object : View

Products Affected

vercel

next.js

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

CWE-358

Improperly Implemented Security Check for Standard

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