Vulnerability · Published Oct 2, 2026 · Assigned by GitHub_M

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

High 8.3

In plain English

A high-severity server-side request forgery in next.js from vercel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.3High

Exploit odds (30 days)0.3%top 73.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	next	16.3.8	GHSA-cjq9-62q9-8jv4

Affected products (as reported)

Vendor	Product	Versions
vercel	next.js	>= 16.0.0, < 16.3.8

Weakness: CWE-918 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

References

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