CVE-2026-46383 — Microsoft APM is an open-source, community-driven

title: CVE-2026-46383 - Microsoft APM Archive Extraction Boundary Failure
id: scw-2026-05-15-ai-1
status: experimental
level: high
description: |
  Detects the execution of Microsoft APM's 'apm install' command with a .tar.gz file on vulnerable Python 3.10 and 3.11 runtimes, indicating a potential exploitation attempt of CVE-2026-46383. This vulnerability allows for arbitrary file write due to an archive extraction boundary failure.
author: SCW Feed Engine (AI-generated)
date: 2026-05-15
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-46383/
tags:
  - attack.persistence
  - attack.t1505.003
logsource:
    category: process_creation
detection:
  selection:
      Image|startswith:
          - 'C:\Python310\python.exe'
          - 'C:\Python311\python.exe'
      CommandLine|contains:
          - 'apm install'
          - '.tar.gz'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse