CVE-2026-94543
Published:October 02, 2026
Updated:October 09, 2026
Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, self-hosted applications using the Pages Router with statically generated or Incremental Static Regeneration pages can key a response cache entry without sufficiently binding it to the source route. A request can replace one page's cache entry with content from a different route, causing the affected page to serve incorrect content to every visitor until revalidation. Applications deployed on Vercel are not affected. This issue is fixed in versions 15.5.27 and 16.3.8.
Affected Packages
https://github.com/vercel/next.js.git (GITHUB):
Affected version(s) >=v15.0.0 <v15.5.27Fix Suggestion:
Update to version v15.5.27https://github.com/vercel/next.js.git (GITHUB):
Affected version(s) >=v16.0.0 <v16.3.8Fix Suggestion:
Update to version v16.3.8next (NPM):
Affected version(s) >=15.0.0 <15.5.27Fix Suggestion:
Update to version 15.5.27next (NPM):
Affected version(s) >=16.0.0 <16.3.8Fix Suggestion:
Update to version 16.3.8Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Use of Cache Containing Sensitive Information
EPSS
Base Score:
0.29