Server-Side Request Forgery (SSRF) in Next.js - CVE-2026-94483
Published: October 2, 2026
Vulnerability identifier: #VU153124
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-94483
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform server-side request forgery.
The vulnerability exists due to improper validation of allow-listed remote URLs in Image Optimization when processing an attacker-controlled allow-listed remote URL. A remote attacker can provide an attacker-controlled allow-listed remote URL to perform server-side request forgery.
Only applications with images.remotePatterns configured are affected.
Affected software
Next.js
How to mitigate CVE-2026-94483
Install security update from vendor's website.
Next.js - update to 16.3.8