← CVE Intelligence

CVE-2026-46383

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
microsoft / apmaffected < 0.13.0

CWE

CWE-22, CWE-73

References

ADP enrichment

CISA-ADP

No English description supplied.