MediumGHSA-g77x-44xx-532mCVE-2024-47831

Denial of Service condition in Next.js image optimization

Published 14 Oct 2024 · Updated 10 Sept 2026

Affected package

Affected: >=10.0.0 <14.2.7
Fixed in: 14.2.7

Update to the fixed version for your release line, for example:npm install next@14.2.7

Details

Impact

The image optimization feature of Next.js contained a vulnerability which allowed for a potential Denial of Service (DoS) condition which could lead to excessive CPU consumption.

Not affected:

The next.config.js file is configured with images.unoptimized set to true or images.loader set to a non-default value.
The Next.js application is hosted on Vercel.

Patches

This issue was fully patched in Next.js 14.2.7. We recommend that users upgrade to at least this version.

Workarounds

Ensure that the next.config.js file has either images.unoptimized, images.loader or images.loaderFile assigned.

Credits

Brandon Dahler (brandondahler), AWS Dimitrios Vlastaras

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.