cvedb.io
CVE-2025-59471
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2026-01-26T22:15:52.890 · Last modified 2026-06-17T09:46:13.220

Summary

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.

Affected products

vercel — next.js

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.