HTTP Request Smuggling Affecting next package, versions >=15.0.4-canary.51 <15.1.8


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-JS-NEXT-10598339
  • published4 Jul 2025
  • disclosed3 Jul 2025
  • creditAllam Rachid,Allam Yasser

Introduced: 3 Jul 2025

NewCVE-2025-49826  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade next to version 15.1.8 or higher.

Overview

next is a react framework.

Affected versions of this package are vulnerable to HTTP Request Smuggling that allows poisoning the browser cache with an HTTP 204 reponse for a static page, thereby denying service to other users.

CVSS Base Scores

version 4.0
version 3.1