CVE-2026-94483
Medium
Description
Next.js is a React framework for building full-stack web applications. From 16.0.0 until 16.3.8, Image Optimization can follow attacker-controlled DNS resolution for a remote URL that matches images.remotePatterns, allowing the optimized image fetch to reach private IP addresses after the URL passes the allow-list check. Applications without images.remotePatterns are not affected. Administrators unable to upgrade should audit allow-listed hosts and avoid entries whose DNS records are not trusted. This issue is fixed in version 16.3.8.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Vercel Next.js
PublishedOct 2, 2026
First seenOct 2, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- vercel next.js16.3.8 or later
- next16.3.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vercel next.js | 16.0.0 ≤ v < 16.3.8 | 16.3.8 |
| nextnpm | 16.0.0 ≤ v < 16.3.8 | 16.3.8 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.