CVE-2026-54149

HIGH

MaxKB MCP tool import validation bypass allows post-authentication remote code execution

Title source: cna

Description

MaxKB is an open-source AI assistant for enterprise. Prior to 2.10.0-lts, MaxKB tool import functionality in apps/tools/serializers/tool.py and MCP referencing mode in apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py do not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands and trigger the configuration through an AI Chat node so MultiServerMCPClient executes arbitrary system commands. This issue is fixed in version 2.10.0-lts.

References (2)

Core 2

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-4pr3-9xhm-98x5

X_Refsource_Misc x_refsource_misc

https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.0-lts

Scores

CVSS v3 8.8

EPSS 0.0038

EPSS Percentile 31.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-78

Status published

Products (1)

1Panel-dev/MaxKB < 2.10.0-lts

Published Jul 10, 2026

Tracked Since Jul 10, 2026