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5.9 Medium

CVE-2025-59471 A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for…

Description

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 and versions

Product Affected versions Fixed in
next 16.0 16.0 → < 16.1.5 16.1.5
next 15.0 15.0 → < 15.5.10 15.5.10
next 14.0 earliest → < 14.0 14.0
next 13.0 earliest → < 13.0 13.0
next 12.0 earliest → < 12.0 12.0
next 11.0 earliest → < 11.0 11.0
next 10.0 earliest → < 10.0 10.0

References

Timeline

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