GHSA-cjq9-62q9-8jv4: next (CVE-2026-94483)

Package	Ecosystem	Affected	Fixed in
next	npm	>=16.0.0, <16.3.8	16.3.8

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Next.js versions 16.0.0 through before 16.3.8 are vulnerable to server-side request forgery in Image Optimization, where an attacker-controlled remote URL that is allow-listed can cause the server to make requests to private IP addresses. The source does not describe the exact attacker access required beyond supplying a URL that matches an allow-listed pattern. Upgrade next to version 16.3.8, which is the listed fix; the source's workaround is to audit hosts in images.remotePatterns that may not be trusted with their DNS entries, and apps with no remotePatterns configured are not affected.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.3	High	4.0	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	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0033, the 26th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 13:33 UTC First seen by agentprime
31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.