CVE-2025-59471
Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration
Impact
A DoS 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 and 16.1.5 to reduce risk and prevent availability issues in Next applications.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | next | >= 10.0.0, < 15.5.10 | 15.5.10 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Vercel | Next.Js | from 10.0.0 before 15.5.10 from 16.0.0 before 16.1.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/vercel/next.js/security/advisories/GHSA-9g9p-9gw9-jx7f
- https://github.com/advisories/GHSA-9g9p-9gw9-jx7f
- https://nvd.nist.gov/vuln/detail/CVE-2025-59471
- https://github.com/vercel/next.js/commit/500ec83743639addceaede95e95913398975156c
- https://github.com/vercel/next.js/commit/e5b834d208fe0edf64aa26b5d76dcf6a176500ec
- https://github.com/vercel/next.js/releases/tag/v15.5.10
- https://github.com/vercel/next.js/releases/tag/v16.1.5