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 <bundle> on supported Python 3.10 and 3.11 runtimes. When apm install is given a local .tar.gz that is not recognized as a plugin-format bundle, APM probes whether it is a legacy --format apm bundle. On Python versions earlier than 3.12, that probe extracts untrusted tar members with raw tar.extractall() without rejecting Windows absolute member names such as D:/.... This vulnerability is fixed in 0.13.0.

Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-mq5j-pw29-jcv3 Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in `apm install`
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 15 May 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 15 May 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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 <bundle> on supported Python 3.10 and 3.11 runtimes. When apm install is given a local .tar.gz that is not recognized as a plugin-format bundle, APM probes whether it is a legacy --format apm bundle. On Python versions earlier than 3.12, that probe extracts untrusted tar members with raw tar.extractall() without rejecting Windows absolute member names such as D:/.... This vulnerability is fixed in 0.13.0.
Title Microsoft APM: Windows absolute-path tar member overwrite during legacy-bundle probing in `apm install`
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-15T17:49:11.229Z

Reserved: 2026-05-13T19:53:47.922Z

Link: CVE-2026-46383

cve-icon Vulnrichment

Updated: 2026-05-15T17:48:01.747Z

cve-icon NVD

Status : Received

Published: 2026-05-15T17:16:49.090

Modified: 2026-05-15T19:17:04.220

Link: CVE-2026-46383

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T17:30:04Z

Weaknesses