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fetch(next/image): reduce maximumResponseBody from 300MB to 50MB #88588

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Merged
styfle merged 2 commits into from
Jan 15, 2026
Merged

fetch(next/image): reduce maximumResponseBody from 300MB to 50MB #88588

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2777fae
fetch(next/image): reduce maximumResponseBody from 300MB to 50MB
styfle Jan 15, 2026
dd31a4b
fix tests
styfle Jan 15, 2026
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8 changes: 4 additions & 4 deletions docs/01-app/03-api-reference/02-components/image.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -839,22 +839,22 @@ module.exports = {

#### `maximumResponseBody`

The default image optimization loader will fetch source images up to 300 MB in size.
The default image optimization loader will fetch source images up to 50 MB in size.

```js filename="next.config.js"
module.exports = {
images: {
maximumResponseBody: 300_000_000,
maximumResponseBody: 50_000_000,
},
}
```

If you know all your source images are small, you can protect memory constrained servers by reducing this to a smaller value such as 50 MB.
If you know all your source images are small, you can protect memory constrained servers by reducing this to a smaller value such as 5 MB.

```js filename="next.config.js"
module.exports = {
images: {
maximumResponseBody: 50_000_000,
maximumResponseBody: 5_000_000,
},
}
```
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2 changes: 1 addition & 1 deletion packages/next/src/shared/lib/image-config.ts
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Expand Up @@ -157,7 +157,7 @@ export const imageConfigDefault: ImageConfigComplete = {
minimumCacheTTL: 14400, // 4 hours
formats: ['image/webp'],
maximumRedirects: 3,
maximumResponseBody: 300_000_000, // 300MB
maximumResponseBody: 50_000_000, // 50 MB
dangerouslyAllowLocalIP: false,
dangerouslyAllowSVG: false,
contentSecurityPolicy: `script-src 'none'; frame-src 'none'; sandbox;`,
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2 changes: 1 addition & 1 deletion test/integration/next-image-new/app-dir-localpatterns/test/index.test.ts
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Expand Up @@ -98,7 +98,7 @@ function runTests(mode: 'dev' | 'server') {
},
],
maximumRedirects: 3,
maximumResponseBody: 300000000,
maximumResponseBody: 50000000,
minimumCacheTTL: 14400,
path: '/_next/image',
qualities: [75],
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2 changes: 1 addition & 1 deletion test/integration/next-image-new/app-dir-qualities/test/index.test.ts
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Expand Up @@ -110,7 +110,7 @@ function runTests(mode: 'dev' | 'server') {
},
],
maximumRedirects: 3,
maximumResponseBody: 300000000,
maximumResponseBody: 50000000,
minimumCacheTTL: 14400,
path: '/_next/image',
qualities: [42, 69, 88],
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2 changes: 1 addition & 1 deletion test/integration/next-image-new/app-dir/test/index.test.ts
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Expand Up @@ -1796,7 +1796,7 @@ function runTests(mode: 'dev' | 'server') {
},
],
maximumRedirects: 3,
maximumResponseBody: 300000000,
maximumResponseBody: 50000000,
minimumCacheTTL: 14400,
path: '/_next/image',
qualities: [75],
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2 changes: 1 addition & 1 deletion test/integration/next-image-new/unicode/test/index.test.ts
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Expand Up @@ -103,7 +103,7 @@ function runTests(mode: 'server' | 'dev') {
},
],
maximumRedirects: 3,
maximumResponseBody: 300000000,
maximumResponseBody: 50000000,
minimumCacheTTL: 14400,
path: '/_next/image',
qualities: [75],
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2 changes: 1 addition & 1 deletion test/integration/next-image-new/unoptimized/test/index.test.ts
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Expand Up @@ -118,7 +118,7 @@ function runTests(url: string, mode: 'dev' | 'server') {
},
],
maximumRedirects: 3,
maximumResponseBody: 300000000,
maximumResponseBody: 50000000,
minimumCacheTTL: 14400,
path: '/_next/image',
qualities: [75],
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2 changes: 1 addition & 1 deletion test/unit/image-optimizer/fetch-external-image.test.ts
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Expand Up @@ -19,7 +19,7 @@ describe('fetchExternalImage', () => {
const error = await fetchExternalImage(
'http://example.com/no-body.jpg',
false,
300_000_000
50_000_000
).catch((e) => e)

expect(error).toBeInstanceOf(ImageError)
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