CVE-2026-44577 — Next.js is a React framework for building full-stack web

title: CVE-2026-44577 - Next.js Image Optimization API Out-of-Memory Attempt
id: scw-2026-05-13-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-44577 by targeting the Next.js Image Optimization API ('/_next/image') with requests that could lead to an out-of-memory condition. The presence of 'width=' and 'height=' parameters in the query string, combined with a 500 Internal Server Error status, suggests an attempt to trigger the vulnerability by requesting excessively large local assets.
author: SCW Feed Engine (AI-generated)
date: 2026-05-13
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-44577/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|startswith:
          - '/_next/image'
      cs-uri-query|contains:
          - 'width='
          - 'height='
      sc-status:
          - 500
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse