CVE-2026-46383

MEDIUM EPSS 44.7%

Published May 15, 20261mo ago · Modified Jun 17, 20262w ago

5.5 CVSS 3.1

Medium

Published May 15, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity High

Availability None

Threat Intelligence

EPSS Exploit Probability

44.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 2

CWE-22 Path Traversal Resource Mgmt

CWE-73

References 1

github.com https://github.com/microsoft/apm/security/advisories/GHSA-mq5j-pw29-jcv3

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.