CVE-2025-66446: MaxKB has a Python sandbox LD_PRELOAD bypass
Published Dec 11, 2025
·Updated
MaxKB is an open-source AI assistant for enterprise. Versions 2.3.1 and below have improper file permissions which allow attackers to overwrite the built-in dynamic linker and other critical files, potentially resulting in privilege escalation. This issue is fixed in version 2.4.0.
Affected Software
2 affected components
pypi/MaxKB<=2.3.1
MaxKB MaxKB<2.4.0
Event History
Dec 11, 2025
CVE Published
via MITRE·09:47 PM
Data Sourced
via MITRE·09:47 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-66446?
CVE-2025-66446 has a high-severity rating due to the potential for privilege escalation.
2
How do I fix CVE-2025-66446?
To fix CVE-2025-66446, upgrade to MaxKB version 2.4.0 or later.
3
What versions are affected by CVE-2025-66446?
CVE-2025-66446 affects MaxKB versions 2.3.1 and below.
4
What vulnerabilities does CVE-2025-66446 introduce?
CVE-2025-66446 allows attackers to overwrite critical files, including the dynamic linker, due to improper file permissions.
5
Who is impacted by CVE-2025-66446?
Organizations and users utilizing MaxKB versions 2.3.1 and earlier are impacted by CVE-2025-66446.