CVE-2024-51479

HIGH

Next.js 9.5.5-14.2.14 - Improper Authorization via Pathname-Based Middleware Bypass

Title source: llm
STIX 2.1

Description

Next.js is a React framework for building full-stack web applications. In affected versions if a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed for pages directly under the application's root directory. For example: * [Not affected] `https://example.com/` * [Affected] `https://example.com/foo` * [Not affected] `https://example.com/foo/bar`. This issue is patched in Next.js `14.2.15` and later. If your Next.js application is hosted on Vercel, this vulnerability has been automatically mitigated, regardless of Next.js version. There are no official workarounds for this vulnerability.

References (2)

Core 2
Core References

Scores

CVSS v3 7.5
EPSS 0.7851
EPSS Percentile 99.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-285 CWE-863
Status published
Products (2)
npm/next 9.5.5 - 14.2.15npm
vercel/next.js 9.5.5 - 14.2.15
Published Dec 17, 2024
Tracked Since Feb 18, 2026