What’s Vulnerable › Vulnerabilities

CVE-2026-94483: Next.js: Server-Side Request Forgery in Image Optimization

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-02 · updated 2026-10-06
• Weakness: CWE-918

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.

Affected products

• Next.js: from 16.0.0 before 16.3.8 — fixed in 16.3.8

How to fix

Upgrade to a fixed version: Next.js 16.3.8. Check the vendor advisory for mitigations.

References

• https://github.com/vercel/next.js/commit/e002ad68bd676bb0ed0c87bb22e3590304763e0b
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/vercel/next.js/security/advisories/GHSA-cjq9-62q9-8jv4

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