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CVE-2026-44641

CVE-2026-44641 · Microsoft APM: plugin.json component paths escape plugin root and copy arbitrary host files during install

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.8.12, Microsoft APM normalizes marketplace plugins by copying plugin components referenced in plugin.json into .apm/. The manifest fields agents, skills, commands, and hooks are attacker-controlled, but the implementation does not enforce that those paths remain inside the plugin directory. A malicious plugin can therefore use absolute paths or ../ traversal paths to copy arbitrary readable host files or directories from the installer's machine during apm install. This vulnerability is fixed in 0.8.12.

CVSS 7.1 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • apm

    Versions
    • < 0.8.12: Affected

    No fix published

  • apm-cli PyPI

    Versions
    • 0.1.0
    • 0.1.1
    • 0.1.2
    • 0.1.4
    • 0.1.5
    • 0.1.6
    • 0.1.7
    • 0.2.0
    • 0.3.0
    • 0.4.0
    • 0.4.1
    • 0.4.2
    • 0.4.3
    • 0.5.0
    • 0.5.1
    • 0.5.2
    • 0.5.3
    • 0.5.4
    • 0.5.5
    • 0.5.6
    • 0.5.7
    • 0.5.8
    • 0.5.9
    • 0.6.0
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.7.0
    • 0.7.1
    • 0.7.2
    • 0.7.3
    • 0.7.4
    • 0.7.5
    • 0.7.6
    • 0.7.7
    • 0.7.8
    • 0.7.9
    • 0.8.0
    • 0.8.1
    • 0.8.10
    • 0.8.11
    • 0.8.2
    • 0.8.3
    • 0.8.4
    • 0.8.5
    • 0.8.6
    • 0.8.7
    • 0.8.8
    • 0.8.9
    Affected ranges
    • ECOSYSTEM: < 0.8.12

    Update to 0.8.12

Original sources

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