CVE-2026-42044 — Privilege Escalation

title: CVE-2026-42044 - Axios Prototype Pollution leading to JSON API Response Modification
id: scw-2026-04-24-ai-1
status: experimental
level: high
description: |
  This rule detects potential exploitation of CVE-2026-42044 by looking for web requests targeting API endpoints that include 'transformResponse' in the query parameters. This indicates an attempt to manipulate the response transformation, a key indicator of the prototype pollution vulnerability in Axios versions prior to 1.15.2, which can lead to privilege escalation or data manipulation.
author: SCW Feed Engine (AI-generated)
date: 2026-04-24
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-42044/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/api/'
      cs-method|exact:
          - 'POST'
      cs-uri-query|contains:
          - 'transformResponse'
  selection_base:
      sc-status|exact:
          - '200'
  condition: selection AND selection_base
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse