CVE-2025-59471 - Next.js Image Optimizer Remote Denial of Service (DoS)

CVE ID : CVE-2025-59471 Published : Jan. 26, 2026, 10:15 p.m. | 1 hour, 33 minutes ago 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. Severity: 5.9 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...