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Vulnerabilities

CVE-2026-46383 | BDVDB-2026-333639 Detail

Microsoftapm

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: local.

Weaknesses#

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 External Control of File Name or Path

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.