CVE-2025-59471
MEDIUM
GHSA-9g9p-9gw9-jx7f
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Description
A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for the Image Optimizer. The image optimization endpoint (`/_next/image`) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that `remotePatterns` is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain. Strongly consider upgrading to 15.5.10 or 16.1.5 to reduce risk and prevent availability issues in Next applications.
Analysis
A denial of service vulnerability exists in self-hosted Next.js applications that have remotePatterns configured for the Image Optimizer. [CVSS 5.9 MEDIUM]
Technical Context
Classified as CWE-400 (Uncontrolled Resource Consumption). Affects Next.Js. A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for the Image Optimizer. The image optimization endpoint (`/_next/image`) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that `remotePatterns` is configured to allow image optimization from external domains and
Affected Products
Vendor: Vercel. Product: Next.Js.
Remediation
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Priority Score
Vendor Status
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External POC / Exploit Code
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