Critical severity · published Dec 11, 2025
CVE-2025-66419
MaxKB vulnerable to privilege escalation through sandbox bypass
10.0
CVSS
0.3%
EPSS
No
On KEV
Description
MaxKB is an open-source AI assistant for enterprise. In versions 2.3.1 and below, the tool module allows an attacker to escape the sandbox environment and escalate privileges under certain concurrent conditions. This issue is fixed in version 2.4.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
MaxKB · 1Panel-dev
< 2.4.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66419
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66419
Patch
https://github.com/1Panel-dev/MaxKB/commit/f8ada9a110c4dbef8c3c2636c78847ecd621ece7
Release Notes
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.4.0
Vendor Advisory
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-f9qm-2pxq-fx6c
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