Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.16 and 16.2.5, App Router applications that rely on middleware or proxy-based checks for authorization can allow unauthorized access through transport-specific route variants used for segment prefetching. In affected configurations, specially crafted .rsc and segment-prefetch URLs can resolve to the same page without being matched by the intended middleware rule, which can allow protected content to be reached without the expected authorization check. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| Link | Resource |
|---|---|
| https://github.com/vercel/next.js/security/advisories/GHSA-267c-6grr-h53f | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
14 May 2026, 12:38
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* | |
| First Time |
Vercel next.js
Vercel |
|
| References | () https://github.com/vercel/next.js/security/advisories/GHSA-267c-6grr-h53f - Vendor Advisory |
13 May 2026, 17:25
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-13 17:16
Updated : 2026-05-14 12:38
NVD link : CVE-2026-44575
Mitre link : CVE-2026-44575
CVE.ORG link : CVE-2026-44575
JSON object : View
Products Affected
vercel
- next.js
CWE
CWE-288
Authentication Bypass Using an Alternate Path or Channel