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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-9g9p-9gw9-jx7f Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 27 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Jan 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Vercel
Vercel next.js
Vendors & Products Vercel
Vercel next.js

Mon, 26 Jan 2026 22:00:00 +0000

Type Values Removed Values Added
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.
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-01-27T14:55:15.271Z

Reserved: 2025-09-16T15:00:07.876Z

Link: CVE-2025-59471

cve-icon Vulnrichment

Updated: 2026-01-27T14:55:07.103Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-26T22:15:52.890

Modified: 2026-01-27T15:15:56.453

Link: CVE-2025-59471

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-27T09:03:08Z

Weaknesses