External Control of File Name or Path Affecting apm-cli package, versions [,0.13.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-APMCLI-17283347
- published10 Jun 2026
- disclosed15 May 2026
- creditMohamed Abdelaal
Introduced: 15 May 2026
CVE-2026-46383 (opens in a new tab)How to fix?
Upgrade apm-cli to version 0.13.0 or higher.
Overview
apm-cli is a MCP configuration tool
Affected versions of this package are vulnerable to External Control of File Name or Path through the tar.extractall function in legacy-bundle probing on Windows systems running Python versions earlier than 3.12. An attacker can overwrite arbitrary files outside the intended extraction directory by supplying a crafted .tar.gz archive containing Windows absolute paths as member names and inducing a user to execute the install command with this archive.
Note: This is only exploitable if the victim is running on Windows with Python 3.10 or 3.11 and executes the install command on a maliciously crafted local bundle.