CVE-2026-94483
mediumpriority · track · 26EPSS 0.003 · 26 %ileDEUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–8.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (4)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3699Vercel Next.js: Mehrere SchwachstellenDeutsch2026-09-30csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Vercel Next.js ausnutzen, um vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder Denial-of-Service-Zustände auszulösen.
- GHSA-cjq9-62q9-8jv4Next.js has Server-Side Request Forgery in Image Optimization2026-10-07ghsa · osvUS
## Impact An attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization. ## Workaround 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.
sources
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references (3) nvd
External citations — patches, advisories, analysis.
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