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OpenAdvisories
Medium · 4.6 CVE-2025-53927 EUVD-2025-21772

MaxKB sandbox bypass

Published Jul 17, 2025 · Updated Jul 17, 2025 · Assigned by GitHub_M

Description

MaxKB is an open-source AI assistant for enterprise. Prior to version 2.0.0, the sandbox design rules can be bypassed because MaxKB only restricts the execution permissions of files in a specific directory. Therefore, an attacker can use the `shutil.copy2` method in Python to copy the command they want to execute to the executable directory. This bypasses directory restrictions and reverse shell. Version 2.0.0 fixes the issue.

Affected products

VendorProductAffectedFixed
1Panel-dev MaxKB < 2.0.0 —

References