7.5

CVE-2026-45109

Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Vercel ≫ Next.Js SwPlatformnode.js Version >= 15.2.0 < 15.5.18
Vercel ≫ Next.Js SwPlatformnode.js Version >= 16.0.0 < 16.2.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.51% 0.393
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-288 Authentication Bypass Using an Alternate Path or Channel

The product requires authentication, but the product has an alternate path or channel that does not require authentication.

CWE-358 Improperly Implemented Security Check for Standard

The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.

https://github.com/vercel/next.js/security/advisories/GHSA-26hh-7cqf-hhc6
Vendor Advisory
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
https://access.redhat.com/errata/RHSA-2026:34608