CVE-2025-59471Disclosure(vercel / next.js)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • next.js

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
next.js

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-01-27: 1Technical Details · 2026-01-27: 101-27
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • cvereports@_cvereports
    Disclosure

    CVE-2025-59471: Next.js Image Optimizer: The 4GB Hello World The Next.js Image Optimization API, a beloved feature for frontend performance, contained a fatal resource handling flaw. By requesting the optimization of a massive external image, an attac... https://cvereports.com/reports/CVE-2025-59471

    Post summary

    The report announces a resource handling vulnerability in Next.js Image Optimizer that allows requests for large external images, but it does not reveal a PoC, exploit tool, active exploitation, or a patch.

    0000066
    29 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appvercelnext.js-node.js-

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