CVE-2026-44641— Microsoft APM: plugin.json component paths escape plugin root and copy arbitrary host files during install
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-44641
Vulnerability Information
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Vulnerability Title
Microsoft APM: plugin.json component paths escape plugin root and copy arbitrary host files during install
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44641
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- https://github.com/microsoft/apm/security/advisories/GHSA-xhrw-5qxx-jpwrx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-44641
Same Patch Batch · microsoft · 2026-05-15 · 3 CVEs total
| CVE-2026-45539 | 7.4 HIGH | Microsoft APM: Symlinks under `.apm/prompts/` and `.apm/agents/` are dereferenced during ` |
| CVE-2026-46383 | 5.5 MEDIUM | Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in |
IV. Related Vulnerabilities
Same vendor: microsoft
- CVE-2026-46383
Microsoft APM: Windows absolute-path tar member overwrite du - CVE-2026-45539
Microsoft APM: Symlinks under `.apm/prompts/` and `.apm/agen - CVE-2026-41615
Microsoft Authenticator Information Disclosure Vulnerability - CVE-2026-42897
Microsoft Exchange Server Spoofing Vulnerability - CVE-2026-44503
Kiota abstractions RedirectHandler leaks Cookie/Proxy-Author
Same weakness: CWE-22
- CVE-2026-44565
Open WebUI: Open WebUI Arbitrary File Write, Delete via Path - CVE-2026-44566
Open WebUI: Arbitrary File Upload and Path Traversal - CVE-2026-46383
Microsoft APM: Windows absolute-path tar member overwrite du - CVE-2026-41552
Path Traversal in PDF Export Module - CVE-2026-7182
Path Traversal in Diagram
V. Comments for CVE-2026-44641
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