CVE-2026-94482
Published:October 22, 2026
Updated:October 23, 2026
Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.
Affected Packages
https://github.com/vercel/next.js.git (GITHUB):
Affected version(s) >=v16.0.0-beta.0 <v16.4.1Fix Suggestion:
Update to version v16.4.1https://github.com/vercel/next.js.git (GITHUB):
Affected version(s) >=v15.0.0-rc.0 <v15.5.28Fix Suggestion:
Update to version v15.5.28next (NPM):
Affected version(s) >=16.0.0-beta.0 <16.4.1Fix Suggestion:
Update to version 16.4.1next (NPM):
Affected version(s) >=15.0.0-rc.0 <15.5.28Fix Suggestion:
Update to version 15.5.28Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling