CVE-2026-44641
Microsoft APM: plugin.json component paths escape plugin root and copy arbitrary host files during install
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 CWE-73 |
| Vendor | microsoft |
| Product | apm |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | May 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
microsoft / apm
< 0.8.12