Description
Next.js is a React framework for building full-stack web applications. From versions 15.0.4-canary.51 to before 15.1.8, a cache poisoning bug leading to a Denial of Service (DoS) condition was found in Next.js. This issue does not impact customers hosted on Vercel. Under certain conditions, this issue may allow a HTTP 204 response to be cached for static pages, leading to the 204 response being served to all users attempting to access the page. This issue has been addressed in version 15.1.8.
Scores
CVSS v3
7.5
EPSS
0.0017
EPSS Percentile
38.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-444
Status
published
Products (3)
npm/next
15.0.4-canary.51 - 15.1.8npm
vercel/next.js
15.0.4 canary51 (2 CPE variants)
vercel/next.js
15.0.4 - 15.1.8
Published
Jul 03, 2025
Tracked Since
Feb 18, 2026