Vulnerability GHSA-673q-mjm6-r5xr

Critical
CRITICAL RISK
CVSS Score: 9.5
Score Range: 9.0–10.0
Critical severity vulnerabilities (CVSS 9.0–10.0). These represent the highest impact issues.
12 days ago
October 22, 2026 at 04:42 PM UTC
Next.js: Unauthenticated Remote Code Execution in `use cache` functions returning typed arrays
16.0.0 - 16.4.0
16.0.0 - 16.4.0

Summary

Next.js: Unauthenticated Remote Code Execution in `use cache` functions returning typed arrays

Details

Impact

A vulnerability in applications using App router with Cache Component can lead to remote code execution. The application needs to have a use cache function that returns multiple typed arrays.

Workaround

There is no known workaround for affected applications with such use cache functions. You should upgrade immediately even if your application does not have similar functions.

Impacted packages

Timeline

Published
12 days ago
October 22, 2026 at 04:42 PM UTC
Fixed (16.4.1)
Unknown
Unknown
Last Modified
12 days ago
October 22, 2026 at 05:00 PM UTC