CVE-2026-46383

Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.13.0, Microsoft APM contains a Windows-specific archive extraction boundary failure in the legacy-bundle probe used by apm install on supported Python 3.10 and 3.11 runtimes. When apm install is given a...

CVE-2026-46383 Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in `apm install`

Microsoft APM is an open-source, community-driven dependency manager for AI agents. Prior to 0.13.0, Microsoft APM contains a Windows-specific archive extraction boundary failure in the legacy-bundle probe used by apm install on supported Python 3.10 and 3.11 runtimes. When apm install is given a...

CVE-2026-46383

Summary: CVE-2026-46383 affects Microsoft APM prior to 0.13.0, where the legacy-bundle probing during apm install on Windows can mishandle local .tar.gz archives. On Python 3.10/3.11, the probe may extract untrusted tar members with tar.extractall() without rejecting Windows absolute member name...