External Control of File Name or Path

Overview apm-cli is a MCP configuration tool Affected versions of this package are vulnerable to External Control of File Name or Path through the tar.extractall function in legacy-bundle probing on Windows systems running Python versions earlier than 3.12. An attacker can overwrite arbitrary fil...

CVE-2026-45539: Improper Link Resolution Before File Access

Microsoft APM is an open-source, community-driven dependency manager for AI agents. From 0.5.4 to 0.12.4, two primitive integrators in apm-cli enumerate package files with bare Path.glob / Path.rglob calls and read each match with Path.readtext, transparently following symbolic links. A symlink...

GHSA-XHRW-5QXX-JPWR Microsoft APM CLI's plugin.json component paths escape plugin root and copy arbitrary host files during install

Summary 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...