Next.js: Denial of Service in the Image Optimization API using SVGs

TRUNG BÌNH 5.3CVE-2026-64644 · GHSA-q8wf-6r8g-63ch · Công bố 27/07/2026 · cập nhật 24/10/2026

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
next.js vercel	`≥ 15.5.0, < 15.5.21≥ 16.0.0, < 16.2.11`	`15.5.2116.2.11`
next npm	`≥ 15.5.0, < 15.5.21≥ 16.0.0, < 16.2.11`	`15.5.2116.2.11`

Mô tả

Impact

When self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints.

If you are using config.images.remotePatterns, only the patterns in that array are impacted.
If you are using config.images.unoptimized: true, you are NOT impacted.
If you are using config.images.loader: 'custom', you are NOT impacted.
If you are using Vercel, you are NOT impacted.

Workarounds

If you cannot upgrade immediately, you can avoid the expensive work by setting config.experimental.imgOptSkipMetadata : true.

Mô tả của NVD

Next.js is a React framework for building full-stack web applications. In versions 15.5.0 through 15.5.20 and 16.0.0 through 16.2.10, when self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints.Only config.images.remotePatterns is affected, and just the patterns in that array, whereas config.images.unoptimized: true, config.images.loader: 'custom', and Vercel are not impacted. This issue has been fixed in versions 15.5.21 and 16.2.11.

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Gói / sản phẩm

Phiên bản bị ảnh hưởng

Phiên bản đã vá

next.js

vercel

≥ 15.5.0, < 15.5.21≥ 16.0.0, < 16.2.11

15.5.2116.2.11

npm