CVE-2026-94483highSSRF & network2026-10-07
CVE-2026-94483: Next.js has Server-Side Request Forgery in Image Optimization
An attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization.
What it is
An attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization.
Audit allow-listed remote URLs in images.remotePatterns (see https://nextjs.org/docs/app/getting-started/images#remote-images) for hosts that may not be trusted with their DNS entries. If no images.remotePatterns are configured, your app is not affected.
How to check
- Affected: next (npm) >= 16.0.0, < 16.3.8.
- Compare your installed version with the range above (command below).
How to fix
- Upgrade next to 16.3.8 or later.
npm ls nextSources
More advisories for this tool
- criticalNext.js: Remote Code Execution in next/og ImageResponse
- criticalCVE-2026-75604: Next.js: Unauthenticated Remote Code Execution on windows-hosted servers
- criticalNext.js: Unauthenticated Remote Code Execution in Image Optimization API when AVIF files are used
- criticalCVE-2025-29927: Next.js middleware authorization bypass